Literature DB >> 21582604

4,5,7,8,17-Penta-hydr-oxy-14,18-dimethyl-6-methyl-ene-3,10-dioxapenta-cyclo-[9.8.0.0.0.0]nona-dec-14-ene-9,16-dione methanol solvate dihydrate.

Chin Hoe Teh, Siew Chin Teoh, Chin Sing Yeap, Kit Lam Chan, Hoong-Kun Fun.   

Abstract

The title quassinoid compound, C(20)H(24)O(9)·CH(3)OH·2H(2)O, is a natural eurycomanone isolated from the roots of Eurycoma longifolia. The mol-ecules contain a fused five-ring system, with one tetra-hydro-furan ring adopting an envelope conformation, one tetra-hydro-pyran-2-one ring in a screw boat conformation, one cyclo-hexenone ring in a half-chair conformation and two cyclo-hexane rings in chair conformations. Intra-molecular C-H⋯O inter-actions generate S(5) ring motifs and an O-H⋯O inter-action generates an S(7) ring motif. In the crystal, mol-ecules are linked via inter-molecular O-H⋯O inter-actions along the b axis and further stacked along a axis. The absolute configuration of the title compound was inferred from previously solved structures of its analogues.

Entities:  

Year:  2009        PMID: 21582604      PMCID: PMC2968991          DOI: 10.1107/S1600536809010502

Source DB:  PubMed          Journal:  Acta Crystallogr Sect E Struct Rep Online        ISSN: 1600-5368


Related literature

For bond-length data, see Allen et al. (1987 ▶). For hydrogen-bond motifs, see Bernstein et al. (1995 ▶). For ring conformations, see Cremer & Pople (1975 ▶). For quassinoids and bioactivity, see Itokawa et al. (1993 ▶); Chan et al. (1992 ▶); Kardono et al. (1991 ▶); Itokawa et al. (1992 ▶); Morita et al. (1992 ▶); Morita et al. (1993 ▶); Tada et al. (1991 ▶); Ang et al. (1995 ▶); Chan et al. (2004 ▶). For the stability of the temperature controller used for the data collection, see: Cosier & Glazer (1986 ▶).

Experimental

Crystal data

C20H24O9·CH4O·2H2O M = 476.47 Orthorhombic, a = 9.1817 (1) Å b = 10.7806 (2) Å c = 21.7817 (3) Å V = 2156.04 (6) Å3 Z = 4 Mo Kα radiation μ = 0.12 mm−1 T = 100 K 0.43 × 0.28 × 0.11 mm

Data collection

Bruker SMART APEXII CCD area-detector diffractometer Absorption correction: multi-scan (; Bruker, 2005 ▶) T min = 0.950, T max = 0.987 27636 measured reflections 3577 independent reflections 3352 reflections with I > 2σ(I) R int = 0.033

Refinement

R[F 2 > 2σ(F 2)] = 0.043 wR(F 2) = 0.127 S = 1.09 3577 reflections 307 parameters H-atom parameters constrained Δρmax = 1.08 e Å−3 Δρmin = −0.46 e Å−3 Data collection: APEX2 (Bruker, 2005 ▶); cell refinement: SAINT (Bruker, 2005 ▶); data reduction: SAINT; program(s) used to solve structure: SHELXTL (Sheldrick, 2008 ▶); program(s) used to refine structure: SHELXTL; molecular graphics: SHELXTL; software used to prepare material for publication: SHELXTL and PLATON (Spek, 2009 ▶). Crystal structure: contains datablocks global, I. DOI: 10.1107/S1600536809010502/at2747sup1.cif Structure factors: contains datablocks I. DOI: 10.1107/S1600536809010502/at2747Isup2.hkl Additional supplementary materials: crystallographic information; 3D view; checkCIF report
C20H24O9·CH4O·2H2OF(000) = 1016
Mr = 476.47Dx = 1.468 Mg m3
Orthorhombic, P212121Mo Kα radiation, λ = 0.71073 Å
Hall symbol: P 2ac 2abCell parameters from 9889 reflections
a = 9.1817 (1) Åθ = 2.4–30.1°
b = 10.7806 (2) ŵ = 0.12 mm1
c = 21.7817 (3) ÅT = 100 K
V = 2156.04 (6) Å3Block, colourless
Z = 40.43 × 0.28 × 0.11 mm
Bruker SMART APEXII CCD area-detector diffractometer3577 independent reflections
Radiation source: fine-focus sealed tube3352 reflections with I > 2σ(I)
graphiteRint = 0.033
φ and ω scansθmax = 30.1°, θmin = 1.9°
Absorption correction: multi-scan (SADABS; Bruker, 2005)h = −12→12
Tmin = 0.950, Tmax = 0.987k = −15→15
27636 measured reflectionsl = −29→30
Refinement on F2Primary atom site location: structure-invariant direct methods
Least-squares matrix: fullSecondary atom site location: difference Fourier map
R[F2 > 2σ(F2)] = 0.043Hydrogen site location: inferred from neighbouring sites
wR(F2) = 0.127H-atom parameters constrained
S = 1.09w = 1/[σ2(Fo2) + (0.0739P)2 + 1.2123P] where P = (Fo2 + 2Fc2)/3
3577 reflections(Δ/σ)max < 0.001
307 parametersΔρmax = 1.08 e Å3
0 restraintsΔρmin = −0.46 e Å3
Experimental. The crystal was placed in the cold stream of an Oxford Cyrosystems Cobra open-flow nitrogen cryostat (Cosier & Glazer, 1986) operating at 100.0 (1)K.
Geometry. All esds (except the esd in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell esds are taken into account individually in the estimation of esds in distances, angles and torsion angles; correlations between esds in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell esds is used for estimating esds involving l.s. planes.
Refinement. Refinement of F2 against ALL reflections. The weighted R-factor wR and goodness of fit S are based on F2, conventional R-factors R are based on F, with F set to zero for negative F2. The threshold expression of F2 > 2sigma(F2) is used only for calculating R-factors(gt) etc. and is not relevant to the choice of reflections for refinement. R-factors based on F2 are statistically about twice as large as those based on F, and R- factors based on ALL data will be even larger.
xyzUiso*/Ueq
O10.1926 (2)0.29462 (17)1.07263 (8)0.0182 (4)
O20.3034 (2)0.07030 (16)1.05042 (8)0.0175 (4)
H20.32230.09971.08420.026*
O30.28241 (19)−0.14352 (15)1.00393 (7)0.0117 (3)
H30.2817−0.07571.02100.018*
O40.22993 (18)−0.17614 (15)0.90312 (7)0.0118 (3)
O50.58130 (19)−0.16373 (15)0.97902 (7)0.0129 (3)
H50.6465−0.21460.98430.019*
O60.5152 (2)−0.13426 (15)0.77017 (7)0.0127 (3)
H60.4834−0.20450.76480.019*
O70.78562 (19)−0.09069 (17)0.82090 (8)0.0147 (3)
H70.8241−0.12580.85010.022*
O80.74680 (19)0.14137 (17)0.77962 (8)0.0167 (4)
O90.51228 (19)0.13846 (15)0.79549 (7)0.0126 (3)
C10.3189 (3)0.22030 (19)0.89489 (10)0.0101 (4)
H1A0.42550.22490.89460.012*
C20.2671 (3)0.3479 (2)0.91422 (11)0.0130 (4)
C30.2330 (3)0.3740 (2)0.97285 (11)0.0152 (4)
H3A0.20230.45360.98300.018*
C40.2431 (3)0.2802 (2)1.02085 (11)0.0133 (4)
C50.3254 (3)0.1614 (2)1.00468 (10)0.0112 (4)
H5A0.42960.18101.00350.013*
C60.2803 (2)0.11364 (19)0.94038 (10)0.0093 (4)
C70.3786 (3)0.00071 (19)0.92185 (9)0.0086 (4)
H7A0.47830.01890.93510.010*
C80.3392 (2)−0.1308 (2)0.94491 (9)0.0094 (4)
C90.4726 (3)−0.21530 (19)0.93946 (9)0.0106 (4)
H9A0.4470−0.29840.95420.013*
C100.5283 (3)−0.2248 (2)0.87386 (10)0.0108 (4)
C110.5208 (3)−0.10845 (19)0.83436 (9)0.0094 (4)
C120.6596 (3)−0.0292 (2)0.84086 (10)0.0105 (4)
H12A0.6718−0.00590.88400.013*
C130.6438 (3)0.0881 (2)0.80244 (10)0.0118 (4)
C140.3716 (3)0.0779 (2)0.80774 (10)0.0104 (4)
H14A0.33270.04720.76870.012*
C150.2754 (3)0.1834 (2)0.82945 (10)0.0119 (4)
H15A0.17420.15760.82880.014*
H15B0.28610.25400.80220.014*
C160.3828 (3)−0.0312 (2)0.85175 (10)0.0094 (4)
C170.2494 (3)−0.1166 (2)0.84404 (10)0.0118 (4)
H17A0.1638−0.06870.83320.014*
H17B0.2669−0.17790.81230.014*
C180.2638 (3)0.4474 (2)0.86586 (12)0.0194 (5)
H18A0.25060.52680.88500.029*
H18B0.18460.43190.83810.029*
H18C0.35400.44690.84360.029*
C190.1144 (3)0.0868 (2)0.94083 (11)0.0125 (4)
H19A0.06180.16370.94230.019*
H19B0.09040.03770.97620.019*
H19C0.08830.04230.90430.019*
C200.5852 (3)−0.3310 (2)0.85366 (11)0.0154 (5)
H20A0.5908−0.39920.87970.018*
H20B0.6192−0.33680.81360.018*
O100.9816 (2)0.5246 (2)0.75796 (10)0.0265 (4)
H101.05880.52270.73900.040*
C210.9754 (3)0.6332 (3)0.79372 (14)0.0273 (6)
H21A0.89550.62760.82200.041*
H21B0.96190.70370.76740.041*
H21C1.06480.64240.81620.041*
O1W0.9259 (2)0.8195 (2)0.91766 (10)0.0283 (5)
H1W11.02160.81370.91730.042*
H2W10.89590.75740.93710.042*
O2W0.8990 (3)0.3466 (2)0.84211 (9)0.0341 (6)
H1W20.83460.29080.82210.051*
H2W20.92610.40120.81610.051*
U11U22U33U12U13U23
O10.0210 (9)0.0187 (8)0.0150 (8)0.0028 (7)0.0020 (7)−0.0043 (7)
O20.0321 (10)0.0119 (7)0.0086 (7)0.0001 (7)0.0005 (7)−0.0005 (6)
O30.0158 (8)0.0101 (7)0.0092 (7)0.0001 (6)0.0037 (6)0.0008 (5)
O40.0128 (7)0.0118 (7)0.0108 (7)−0.0035 (6)−0.0018 (6)0.0019 (6)
O50.0141 (8)0.0127 (7)0.0121 (7)0.0033 (6)−0.0032 (6)−0.0012 (6)
O60.0206 (8)0.0112 (7)0.0063 (6)−0.0015 (7)0.0009 (6)−0.0017 (5)
O70.0134 (8)0.0162 (8)0.0146 (7)0.0044 (7)0.0038 (6)0.0033 (6)
O80.0171 (9)0.0142 (7)0.0187 (8)−0.0025 (7)0.0036 (7)0.0023 (6)
O90.0142 (8)0.0098 (7)0.0136 (7)−0.0001 (6)0.0011 (6)0.0032 (6)
C10.0122 (9)0.0079 (8)0.0102 (9)0.0010 (7)0.0000 (8)0.0003 (7)
C20.0134 (10)0.0084 (9)0.0173 (10)0.0004 (8)−0.0002 (8)0.0008 (8)
C30.0159 (11)0.0111 (9)0.0186 (11)0.0014 (8)0.0004 (9)−0.0026 (8)
C40.0139 (11)0.0100 (9)0.0159 (10)0.0005 (8)−0.0012 (8)−0.0036 (8)
C50.0152 (10)0.0090 (9)0.0093 (9)0.0017 (8)−0.0001 (8)−0.0021 (7)
C60.0113 (9)0.0073 (8)0.0093 (8)0.0015 (8)−0.0011 (7)−0.0009 (7)
C70.0107 (9)0.0080 (8)0.0071 (8)0.0001 (7)−0.0005 (8)−0.0001 (7)
C80.0102 (9)0.0105 (9)0.0075 (8)−0.0004 (8)0.0010 (7)−0.0001 (7)
C90.0141 (10)0.0088 (8)0.0088 (8)0.0002 (8)0.0002 (8)0.0002 (7)
C100.0142 (10)0.0093 (8)0.0089 (9)0.0000 (8)0.0001 (8)−0.0006 (7)
C110.0135 (10)0.0085 (8)0.0063 (8)0.0000 (8)−0.0001 (8)−0.0007 (7)
C120.0134 (10)0.0094 (9)0.0088 (8)0.0001 (8)0.0000 (8)−0.0001 (7)
C130.0158 (11)0.0100 (9)0.0097 (9)−0.0014 (8)0.0013 (8)−0.0020 (7)
C140.0128 (10)0.0103 (9)0.0081 (9)−0.0009 (8)−0.0012 (8)0.0008 (7)
C150.0151 (10)0.0112 (9)0.0094 (9)−0.0001 (8)−0.0015 (8)0.0013 (7)
C160.0130 (10)0.0080 (9)0.0072 (8)−0.0012 (8)−0.0015 (7)0.0003 (7)
C170.0132 (10)0.0128 (10)0.0094 (9)−0.0018 (8)−0.0015 (8)0.0003 (7)
C180.0282 (13)0.0100 (9)0.0199 (11)0.0022 (9)−0.0016 (10)0.0030 (8)
C190.0107 (10)0.0120 (9)0.0147 (10)0.0004 (8)0.0005 (8)−0.0008 (8)
C200.0230 (12)0.0115 (10)0.0116 (9)0.0034 (9)0.0007 (9)−0.0010 (8)
O100.0200 (10)0.0323 (11)0.0272 (10)−0.0057 (9)−0.0002 (8)0.0013 (8)
C210.0211 (13)0.0325 (14)0.0283 (13)0.0028 (12)0.0014 (11)−0.0004 (12)
O1W0.0188 (9)0.0352 (11)0.0310 (10)−0.0017 (9)−0.0018 (8)0.0140 (9)
O2W0.0531 (15)0.0298 (11)0.0195 (9)−0.0224 (11)0.0129 (10)−0.0082 (8)
O1—C41.229 (3)C9—C101.521 (3)
O2—C51.414 (3)C9—H9A0.9800
O2—H20.8200C10—C201.333 (3)
O3—C81.394 (3)C10—C111.523 (3)
O3—H30.8200C11—C121.541 (3)
O4—C81.440 (3)C11—C161.562 (3)
O4—C171.449 (3)C12—C131.523 (3)
O5—C91.431 (3)C12—H12A0.9800
O5—H50.8200C14—C151.516 (3)
O6—C111.426 (2)C14—C161.520 (3)
O6—H60.8200C14—H14A0.9800
O7—C121.402 (3)C15—H15A0.9700
O7—H70.8200C15—H15B0.9700
O8—C131.213 (3)C16—C171.542 (3)
O9—C131.333 (3)C17—H17A0.9700
O9—C141.472 (3)C17—H17B0.9700
C1—C21.516 (3)C18—H18A0.9600
C1—C151.533 (3)C18—H18B0.9600
C1—C61.559 (3)C18—H18C0.9600
C1—H1A0.9800C19—H19A0.9600
C2—C31.345 (3)C19—H19B0.9600
C2—C181.503 (3)C19—H19C0.9600
C3—C41.458 (3)C20—H20A0.9300
C3—H3A0.9300C20—H20B0.9300
C4—C51.528 (3)O10—C211.408 (4)
C5—C61.549 (3)O10—H100.8200
C5—H5A0.9800C21—H21A0.9600
C6—C191.551 (3)C21—H21B0.9600
C6—C71.568 (3)C21—H21C0.9600
C7—C81.547 (3)O1W—H1W10.8814
C7—C161.566 (3)O1W—H2W10.8396
C7—H7A0.9800O2W—H1W20.9487
C8—C91.531 (3)O2W—H2W20.8533
C5—O2—H2109.5C10—C11—C16109.83 (18)
C8—O3—H3109.5C12—C11—C16110.67 (17)
C8—O4—C17108.97 (16)O7—C12—C13107.48 (18)
C9—O5—H5109.5O7—C12—C11113.11 (18)
C11—O6—H6109.5C13—C12—C11109.31 (18)
C12—O7—H7109.5O7—C12—H12A109.0
C13—O9—C14126.43 (17)C13—C12—H12A109.0
C2—C1—C15114.35 (19)C11—C12—H12A109.0
C2—C1—C6114.97 (18)O8—C13—O9117.8 (2)
C15—C1—C6109.89 (17)O8—C13—C12123.0 (2)
C2—C1—H1A105.6O9—C13—C12119.14 (19)
C15—C1—H1A105.6O9—C14—C15103.60 (17)
C6—C1—H1A105.6O9—C14—C16113.43 (18)
C3—C2—C18120.8 (2)C15—C14—C16115.04 (18)
C3—C2—C1121.8 (2)O9—C14—H14A108.2
C18—C2—C1117.3 (2)C15—C14—H14A108.2
C2—C3—C4121.4 (2)C16—C14—H14A108.2
C2—C3—H3A119.3C14—C15—C1109.45 (18)
C4—C3—H3A119.3C14—C15—H15A109.8
O1—C4—C3123.1 (2)C1—C15—H15A109.8
O1—C4—C5120.3 (2)C14—C15—H15B109.8
C3—C4—C5116.6 (2)C1—C15—H15B109.8
O2—C5—C4110.43 (18)H15A—C15—H15B108.2
O2—C5—C6111.59 (18)C14—C16—C17109.82 (18)
C4—C5—C6110.77 (18)C14—C16—C11108.34 (18)
O2—C5—H5A108.0C17—C16—C11107.41 (17)
C4—C5—H5A108.0C14—C16—C7116.32 (17)
C6—C5—H5A108.0C17—C16—C7102.56 (17)
C5—C6—C19108.61 (18)C11—C16—C7111.96 (17)
C5—C6—C1105.59 (16)O4—C17—C16105.42 (17)
C19—C6—C1111.42 (18)O4—C17—H17A110.7
C5—C6—C7109.69 (17)C16—C17—H17A110.7
C19—C6—C7114.94 (18)O4—C17—H17B110.7
C1—C6—C7106.17 (17)C16—C17—H17B110.7
C8—C7—C1696.96 (16)H17A—C17—H17B108.8
C8—C7—C6119.59 (18)C2—C18—H18A109.5
C16—C7—C6115.84 (17)C2—C18—H18B109.5
C8—C7—H7A107.9H18A—C18—H18B109.5
C16—C7—H7A107.9C2—C18—H18C109.5
C6—C7—H7A107.9H18A—C18—H18C109.5
O3—C8—O4106.79 (17)H18B—C18—H18C109.5
O3—C8—C9108.20 (17)C6—C19—H19A109.5
O4—C8—C9107.87 (17)C6—C19—H19B109.5
O3—C8—C7118.47 (17)H19A—C19—H19B109.5
O4—C8—C7105.57 (17)C6—C19—H19C109.5
C9—C8—C7109.47 (18)H19A—C19—H19C109.5
O5—C9—C10110.95 (19)H19B—C19—H19C109.5
O5—C9—C8106.27 (17)C10—C20—H20A120.0
C10—C9—C8112.45 (17)C10—C20—H20B120.0
O5—C9—H9A109.0H20A—C20—H20B120.0
C10—C9—H9A109.0C21—O10—H10109.5
C8—C9—H9A109.0O10—C21—H21A109.5
C20—C10—C9120.0 (2)O10—C21—H21B109.5
C20—C10—C11122.6 (2)H21A—C21—H21B109.5
C9—C10—C11117.39 (18)O10—C21—H21C109.5
O6—C11—C10113.25 (17)H21A—C21—H21C109.5
O6—C11—C12103.16 (17)H21B—C21—H21C109.5
C10—C11—C12111.51 (18)H1W1—O1W—H2W1105.9
O6—C11—C16108.23 (17)H1W2—O2W—H2W2108.4
C15—C1—C2—C3148.4 (2)C20—C10—C11—O627.0 (3)
C6—C1—C2—C319.9 (3)C9—C10—C11—O6−155.1 (2)
C15—C1—C2—C18−35.2 (3)C20—C10—C11—C12−88.9 (3)
C6—C1—C2—C18−163.7 (2)C9—C10—C11—C1289.0 (2)
C18—C2—C3—C4−176.8 (2)C20—C10—C11—C16148.1 (2)
C1—C2—C3—C4−0.5 (4)C9—C10—C11—C16−34.0 (3)
C2—C3—C4—O1−168.7 (2)O6—C11—C12—O7−59.4 (2)
C2—C3—C4—C513.3 (3)C10—C11—C12—O762.5 (2)
O1—C4—C5—O213.0 (3)C16—C11—C12—O7−174.96 (17)
C3—C4—C5—O2−168.9 (2)O6—C11—C12—C1360.3 (2)
O1—C4—C5—C6137.2 (2)C10—C11—C12—C13−177.82 (18)
C3—C4—C5—C6−44.8 (3)C16—C11—C12—C13−55.3 (2)
O2—C5—C6—C1963.6 (2)C14—O9—C13—O8166.4 (2)
C4—C5—C6—C19−59.9 (2)C14—O9—C13—C12−16.6 (3)
O2—C5—C6—C1−176.83 (19)O7—C12—C13—O8−27.5 (3)
C4—C5—C6—C159.7 (2)C11—C12—C13—O8−150.6 (2)
O2—C5—C6—C7−62.8 (2)O7—C12—C13—O9155.59 (19)
C4—C5—C6—C7173.71 (18)C11—C12—C13—O932.5 (3)
C2—C1—C6—C5−48.1 (2)C13—O9—C14—C15147.4 (2)
C15—C1—C6—C5−178.84 (18)C13—O9—C14—C1622.0 (3)
C2—C1—C6—C1969.6 (2)O9—C14—C15—C1−73.9 (2)
C15—C1—C6—C19−61.1 (2)C16—C14—C15—C150.4 (3)
C2—C1—C6—C7−164.58 (18)C2—C1—C15—C14161.25 (19)
C15—C1—C6—C764.7 (2)C6—C1—C15—C14−67.7 (2)
C5—C6—C7—C883.5 (2)O9—C14—C16—C17−159.36 (18)
C19—C6—C7—C8−39.2 (3)C15—C14—C16—C1781.6 (2)
C1—C6—C7—C8−162.86 (18)O9—C14—C16—C11−42.3 (2)
C5—C6—C7—C16−161.04 (18)C15—C14—C16—C11−161.36 (18)
C19—C6—C7—C1676.2 (2)O9—C14—C16—C784.8 (2)
C1—C6—C7—C16−47.4 (2)C15—C14—C16—C7−34.2 (3)
C17—O4—C8—O3154.14 (17)O6—C11—C16—C14−51.0 (2)
C17—O4—C8—C9−89.8 (2)C10—C11—C16—C14−175.06 (18)
C17—O4—C8—C727.2 (2)C12—C11—C16—C1461.4 (2)
C16—C7—C8—O3−161.90 (19)O6—C11—C16—C1767.6 (2)
C6—C7—C8—O3−36.9 (3)C10—C11—C16—C17−56.5 (2)
C16—C7—C8—O4−42.4 (2)C12—C11—C16—C17179.97 (17)
C6—C7—C8—O482.6 (2)O6—C11—C16—C7179.46 (17)
C16—C7—C8—C973.4 (2)C10—C11—C16—C755.4 (2)
C6—C7—C8—C9−161.50 (18)C12—C11—C16—C7−68.2 (2)
O3—C8—C9—O5−67.8 (2)C8—C7—C16—C14161.50 (19)
O4—C8—C9—O5176.98 (16)C6—C7—C16—C1433.8 (3)
C7—C8—C9—O562.6 (2)C8—C7—C16—C1741.6 (2)
O3—C8—C9—C10170.59 (18)C6—C7—C16—C17−86.1 (2)
O4—C8—C9—C1055.4 (2)C8—C7—C16—C11−73.2 (2)
C7—C8—C9—C10−59.0 (2)C6—C7—C16—C11159.07 (18)
O5—C9—C10—C2095.7 (3)C8—O4—C17—C161.0 (2)
C8—C9—C10—C20−145.4 (2)C14—C16—C17—O4−152.40 (18)
O5—C9—C10—C11−82.2 (2)C11—C16—C17—O489.98 (19)
C8—C9—C10—C1136.6 (3)C7—C16—C17—O4−28.1 (2)
D—H···AD—HH···AD···AD—H···A
O1W—H1W1···O4i0.881.942.810 (2)169
O2—H2···O2Wii0.821.852.656 (3)169
O1W—H2W1···O3iii0.842.062.873 (3)163
O3—H3···O20.821.712.525 (2)171
O2W—H1W2···O80.952.032.950 (3)164
O2W—H2W2···O100.851.912.760 (3)179
O5—H5···O3iv0.821.992.805 (2)172
O6—H6···O9v0.822.142.848 (2)144
O7—H7···O1Wvi0.821.842.653 (3)171
O10—H10···O7vii0.822.293.011 (3)147
O10—H10···O8vii0.822.232.911 (3)140
C1—H1A···O90.982.482.936 (3)108
C1—H1A···O1iii0.982.563.507 (3)162
C7—H7A···O50.982.382.856 (3)109
C12—H12A···O1iii0.982.473.168 (3)128
C17—H17A···O10v0.972.603.428 (3)144
C17—H17B···O60.972.502.929 (3)107
C19—H19B···O20.962.562.957 (3)105
Table 1

Hydrogen-bond geometry (Å, °)

D—H⋯AD—HH⋯ADAD—H⋯A
O1W—H1W1⋯O4i0.881.942.810 (2)169
O2—H2⋯O2Wii0.821.852.656 (3)169
O1W—H2W1⋯O3iii0.842.062.873 (3)163
O3—H3⋯O20.821.712.525 (2)171
O2W—H1W2⋯O80.952.032.950 (3)164
O2W—H2W2⋯O100.851.912.760 (3)179
O5—H5⋯O3iv0.821.992.805 (2)172
O6—H6⋯O9v0.822.142.848 (2)144
O7—H7⋯O1Wvi0.821.842.653 (3)171
O10—H10⋯O7vii0.822.293.011 (3)147
O10—H10⋯O8vii0.822.232.911 (3)140
C1—H1A⋯O90.982.482.936 (3)108
C1—H1A⋯O1iii0.982.563.507 (3)162
C7—H7A⋯O50.982.382.856 (3)109
C12—H12A⋯O1iii0.982.473.168 (3)128
C17—H17A⋯O10v0.972.603.428 (3)144
C17—H17B⋯O60.972.502.929 (3)107
C19—H19B⋯O20.962.562.957 (3)105

Symmetry codes: (i) ; (ii) ; (iii) ; (iv) ; (v) ; (vi) ; (vii) .

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1.  A short history of SHELX.

Authors:  George M Sheldrick
Journal:  Acta Crystallogr A       Date:  2007-12-21       Impact factor: 2.290

2.  In vitro antimalarial activity of quassinoids from Eurycoma longifolia against Malaysian chloroquine-resistant Plasmodium falciparum isolates.

Authors:  H H Ang; K L Chan; J W Mak
Journal:  Planta Med       Date:  1995-04       Impact factor: 3.352

3.  Cytotoxic and antimalarial constituents of the roots of Eurycoma longifolia.

Authors:  L B Kardono; C K Angerhofer; S Tsauri; K Padmawinata; J M Pezzuto; A D Kinghorn
Journal:  J Nat Prod       Date:  1991 Sep-Oct       Impact factor: 4.050

4.  Antiplasmodial studies of Eurycoma longifolia Jack using the lactate dehydrogenase assay of Plasmodium falciparum.

Authors:  Kit-Lam Chan; Chee-Yan Choo; Noor Rain Abdullah; Zakiah Ismail
Journal:  J Ethnopharmacol       Date:  2004-06       Impact factor: 4.360

5.  Structure validation in chemical crystallography.

Authors:  Anthony L Spek
Journal:  Acta Crystallogr D Biol Crystallogr       Date:  2009-01-20
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1.  Anti-tumor activity of Eurycoma longifolia root extracts against K-562 cell line: in vitro and in vivo study.

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Journal:  PLoS One       Date:  2014-01-07       Impact factor: 3.240

2.  Effect of herbal extract Eurycoma longifolia (Physta®) on female reproductive hormones and bone biochemical markers: an ovariectomised rat model study.

Authors:  Sasikala M Chinnappan; Annie George; Godavarthi Ashok; Yogendra Kumar Choudhary
Journal:  BMC Complement Med Ther       Date:  2020-02-05
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