Literature DB >> 21203331

Hoodigogenin A from Hoodia gordonii.

Yatin J Shukla, Frank R Fronczek, Rahul S Pawar, Ikhlas A Khan.   

Abstract

The title mol-ecule (systematic name: 12-O-β-tigloyl-3β,14β-dihydroxy-pregn-5-en-20-one), C(26)H(38)O(5), isolated from aerial parts of Hoodia gordonii, has its steroid A and C rings in chair conformations, its B ring in a half-chair conformation, and its five-membered ring in an envelope conformation. The OH group at the C/D ring junction forms an intra-molecular hydrogen bond with the keto substituent. The OH group on the A ring forms an inter-molecular hydrogen bond with the tiglate C=O group, propagating [010] chains in the crystal structure.

Entities:  

Year:  2008        PMID: 21203331      PMCID: PMC2962224          DOI: 10.1107/S1600536808022368

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


Related literature

For related literature, see: Allen (2002 ▶); Consumer Reports (2006 ▶); Etter (1990 ▶); MacLean & Luo (2004 ▶); Muller & Albers (2002 ▶); Nutrition Business Journal (2007 ▶); Pawar et al. (2007 ▶); Shin et al. (1990 ▶); Van Heerden et al. (1998 ▶).

Experimental

Crystal data

C26H38O5 M = 430.56 Orthorhombic, a = 7.6523 (9) Å b = 10.6885 (12) Å c = 27.705 (3) Å V = 2266.0 (4) Å3 Z = 4 Mo Kα radiation μ = 0.09 mm−1 T = 100 K 0.30 × 0.27 × 0.05 mm

Data collection

Nonius KappaCCD (with an Oxford Cryosystems Cryostream cooler) diffractometer Absorption correction: none 9377 measured reflections 2677 independent reflections 2156 reflections with I > 2σ(I) R int = 0.030

Refinement

R[F 2 > 2σ(F 2)] = 0.040 wR(F 2) = 0.100 S = 1.02 2677 reflections 287 parameters H-atom parameters constrained Δρmax = 0.20 e Å−3 Δρmin = −0.17 e Å−3 Data collection: COLLECT (Nonius, 2000 ▶); cell refinement: SCALEPACK (Otwinowski & Minor, 1997 ▶); data reduction: SCALEPACK and DENZO (Otwinowski & Minor, 1997 ▶); program(s) used to solve structure: SIR97 (Altomare et al., 1999 ▶); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008 ▶); molecular graphics: ORTEP-3 (Farrugia, 1997 ▶); software used to prepare material for publication: SHELXL97. Crystal structure: contains datablocks global, I. DOI: 10.1107/S1600536808022368/hb2752sup1.cif Structure factors: contains datablocks I. DOI: 10.1107/S1600536808022368/hb2752Isup2.hkl Additional supplementary materials: crystallographic information; 3D view; checkCIF report
C26H38O5F000 = 936
Mr = 430.56Dx = 1.262 Mg m3
Orthorhombic, P212121Mo Kα radiation λ = 0.71073 Å
Hall symbol: P 2ac 2abCell parameters from 2446 reflections
a = 7.6523 (9) Åθ = 2.5–26.6º
b = 10.6885 (12) ŵ = 0.09 mm1
c = 27.705 (3) ÅT = 100 K
V = 2266.0 (4) Å3Plate, colorless
Z = 40.30 × 0.27 × 0.05 mm
Nonius KappaCCD (with an Oxford Cryosystems Cryostream cooler) diffractometer2156 reflections with I > 2σ(I)
Radiation source: fine-focus sealed tubeRint = 0.030
Monochromator: graphiteθmax = 26.7º
T = 100 Kθmin = 2.7º
ω and φ scansh = −9→9
Absorption correction: nonek = −13→13
9377 measured reflectionsl = −34→34
2677 independent reflections
Refinement on F2Secondary atom site location: difference Fourier map
Least-squares matrix: fullHydrogen site location: inferred from neighbouring sites
R[F2 > 2σ(F2)] = 0.040H-atom parameters constrained
wR(F2) = 0.100  w = 1/[σ2(Fo2) + (0.0516P)2 + 0.3846P] where P = (Fo2 + 2Fc2)/3
S = 1.02(Δ/σ)max < 0.001
2677 reflectionsΔρmax = 0.20 e Å3
287 parametersΔρmin = −0.17 e Å3
Primary atom site location: structure-invariant direct methodsExtinction correction: none
Geometry. All e.s.d.'s (except the e.s.d. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell e.s.d.'s are taken into account individually in the estimation of e.s.d.'s in distances, angles and torsion angles; correlations between e.s.d.'s in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell e.s.d.'s is used for estimating e.s.d.'s 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 > σ(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
O10.9957 (2)0.46948 (17)0.91649 (6)0.0407 (5)
H10H1.06210.40800.91200.061*
O20.3082 (2)0.30783 (16)0.67021 (6)0.0341 (4)
H20H0.25340.30940.64390.051*
O30.2237 (2)0.30076 (18)0.56873 (6)0.0436 (5)
O40.7859 (2)0.53134 (15)0.59363 (6)0.0305 (4)
O50.7923 (2)0.74167 (16)0.59427 (6)0.0369 (4)
C10.9214 (3)0.5459 (3)0.78456 (8)0.0302 (5)
H1A1.00600.55980.75810.036*
H1B0.85240.62360.78840.036*
C21.0228 (3)0.5220 (3)0.83123 (9)0.0342 (6)
H2A1.10210.44980.82660.041*
H2B1.09510.59620.83890.041*
C30.9010 (4)0.4954 (2)0.87292 (8)0.0338 (6)
H30.82820.57180.87850.041*
C40.7785 (3)0.3879 (2)0.86049 (9)0.0329 (6)
H4A0.84710.30950.85850.039*
H4B0.69210.37800.88680.039*
C50.6821 (3)0.4070 (2)0.81332 (9)0.0291 (5)
C60.5095 (3)0.3951 (2)0.81037 (9)0.0329 (6)
H60.44690.37870.83930.039*
C70.4070 (3)0.4058 (3)0.76433 (9)0.0349 (6)
H7A0.34500.48710.76380.042*
H7B0.31820.33850.76320.042*
C80.5244 (3)0.3962 (2)0.71992 (8)0.0289 (5)
H80.57110.30890.71910.035*
C90.6822 (3)0.4840 (2)0.72681 (8)0.0273 (5)
H90.63460.56800.73580.033*
C100.7967 (3)0.4390 (2)0.76984 (8)0.0276 (5)
C110.7907 (3)0.5023 (2)0.68051 (8)0.0292 (6)
H11A0.87140.57380.68500.035*
H11B0.86220.42660.67470.035*
C120.6770 (3)0.5265 (2)0.63685 (8)0.0284 (5)
H120.61550.60840.64090.034*
C130.5413 (3)0.4230 (2)0.62780 (8)0.0282 (5)
C140.4220 (3)0.4154 (2)0.67314 (9)0.0283 (5)
C150.3094 (3)0.5331 (2)0.66889 (9)0.0324 (6)
H15A0.37450.60790.67980.039*
H15B0.20130.52500.68830.039*
C160.2667 (3)0.5414 (3)0.61473 (9)0.0361 (6)
H16A0.26160.62990.60440.043*
H16B0.15220.50190.60800.043*
C170.4140 (3)0.4716 (2)0.58736 (9)0.0311 (5)
H170.47800.53290.56660.037*
C180.6315 (3)0.2983 (2)0.61696 (9)0.0324 (6)
H18A0.69990.27220.64510.049*
H18B0.70930.30830.58910.049*
H18C0.54310.23470.60970.049*
C190.9048 (3)0.3220 (2)0.75633 (9)0.0306 (6)
H19A0.99600.34540.73320.046*
H19B0.82790.25920.74180.046*
H19C0.95900.28730.78540.046*
C200.3456 (3)0.3660 (2)0.55563 (9)0.0336 (6)
C210.4373 (4)0.3454 (3)0.50851 (9)0.0427 (7)
H21A0.56220.33170.51440.064*
H21B0.42210.41910.48790.064*
H21C0.38770.27190.49240.064*
C220.8251 (3)0.6433 (2)0.57417 (9)0.0296 (5)
C230.9065 (3)0.6338 (2)0.52566 (9)0.0301 (6)
C240.9321 (4)0.7573 (3)0.50011 (11)0.0379 (6)
H24A1.01870.80730.51760.057*
H24B0.82090.80260.49900.057*
H24C0.97350.74200.46720.057*
C250.9463 (3)0.5220 (3)0.50738 (9)0.0344 (6)
H250.92210.45190.52740.041*
C261.0243 (4)0.4940 (3)0.45924 (9)0.0412 (7)
H26A1.06540.57190.44440.062*
H26B0.93590.45530.43850.062*
H26C1.12300.43640.46320.062*
U11U22U33U12U13U23
O10.0448 (11)0.0395 (11)0.0377 (10)0.0083 (10)−0.0043 (9)−0.0037 (8)
O20.0286 (9)0.0326 (9)0.0412 (9)−0.0092 (8)−0.0009 (8)0.0016 (8)
O30.0432 (10)0.0413 (11)0.0463 (10)−0.0129 (10)−0.0051 (10)0.0009 (9)
O40.0285 (8)0.0268 (9)0.0363 (9)0.0004 (8)0.0056 (8)0.0033 (8)
O50.0416 (10)0.0273 (10)0.0417 (10)−0.0030 (9)0.0086 (9)−0.0013 (8)
C10.0268 (12)0.0270 (13)0.0369 (13)−0.0032 (11)0.0028 (11)−0.0010 (11)
C20.0316 (12)0.0317 (14)0.0395 (14)−0.0052 (12)0.0004 (12)−0.0019 (12)
C30.0355 (13)0.0312 (15)0.0346 (13)0.0060 (12)−0.0026 (12)−0.0002 (11)
C40.0313 (12)0.0314 (14)0.0360 (13)0.0003 (12)0.0050 (11)0.0008 (11)
C50.0279 (12)0.0221 (13)0.0371 (13)0.0007 (10)0.0024 (11)0.0005 (10)
C60.0299 (13)0.0333 (14)0.0354 (13)−0.0004 (12)0.0046 (11)0.0028 (12)
C70.0264 (13)0.0380 (15)0.0403 (15)−0.0009 (12)0.0048 (12)0.0024 (12)
C80.0227 (11)0.0254 (13)0.0386 (13)−0.0004 (11)0.0007 (11)0.0018 (11)
C90.0246 (11)0.0237 (13)0.0337 (13)0.0011 (10)0.0024 (10)0.0006 (10)
C100.0239 (11)0.0243 (13)0.0345 (13)−0.0002 (10)0.0027 (10)−0.0004 (10)
C110.0215 (11)0.0298 (14)0.0362 (13)−0.0012 (10)0.0008 (10)0.0020 (10)
C120.0252 (12)0.0263 (13)0.0338 (13)0.0008 (11)0.0036 (11)0.0018 (11)
C130.0227 (11)0.0265 (13)0.0354 (13)0.0016 (10)−0.0007 (10)0.0025 (11)
C140.0200 (11)0.0269 (13)0.0381 (13)−0.0023 (10)0.0037 (11)−0.0003 (11)
C150.0245 (12)0.0305 (13)0.0422 (13)0.0005 (11)0.0027 (12)−0.0007 (12)
C160.0327 (13)0.0323 (14)0.0434 (15)0.0060 (12)0.0001 (12)0.0011 (12)
C170.0277 (11)0.0288 (13)0.0369 (13)0.0004 (11)−0.0009 (11)0.0029 (11)
C180.0340 (13)0.0260 (13)0.0372 (13)0.0012 (11)−0.0004 (12)−0.0009 (11)
C190.0267 (12)0.0280 (14)0.0372 (13)0.0000 (11)0.0017 (11)0.0006 (11)
C200.0333 (13)0.0289 (14)0.0388 (14)0.0014 (12)−0.0067 (12)0.0057 (11)
C210.0473 (17)0.0415 (17)0.0393 (15)0.0039 (14)−0.0017 (14)−0.0023 (13)
C220.0238 (12)0.0273 (13)0.0379 (13)−0.0017 (11)−0.0014 (11)0.0030 (11)
C230.0238 (12)0.0337 (14)0.0327 (13)−0.0027 (11)−0.0010 (11)0.0032 (11)
C240.0379 (14)0.0369 (15)0.0388 (13)−0.0039 (13)0.0075 (13)0.0026 (11)
C250.0318 (13)0.0343 (15)0.0371 (13)0.0018 (12)0.0005 (12)0.0025 (12)
C260.0426 (15)0.0396 (17)0.0415 (15)0.0064 (13)0.0018 (13)−0.0021 (12)
O1—C31.435 (3)C11—H11B0.9900
O1—H10H0.8400C12—C131.538 (3)
O2—C141.445 (3)C12—H121.0000
O2—H20H0.8400C13—C181.530 (3)
O3—C201.220 (3)C13—C141.555 (3)
O4—C221.347 (3)C13—C171.573 (3)
O4—C121.460 (3)C14—C151.529 (3)
O5—C221.216 (3)C15—C161.538 (3)
C1—C21.530 (3)C15—H15A0.9900
C1—C101.543 (3)C15—H15B0.9900
C1—H1A0.9900C16—C171.550 (3)
C1—H1B0.9900C16—H16A0.9900
C2—C31.511 (3)C16—H16B0.9900
C2—H2A0.9900C17—C201.523 (4)
C2—H2B0.9900C17—H171.0000
C3—C41.523 (4)C18—H18A0.9800
C3—H31.0000C18—H18B0.9800
C4—C51.515 (3)C18—H18C0.9800
C4—H4A0.9900C19—H19A0.9800
C4—H4B0.9900C19—H19B0.9800
C5—C61.329 (3)C19—H19C0.9800
C5—C101.529 (3)C20—C211.498 (4)
C6—C71.502 (3)C21—H21A0.9800
C6—H60.9500C21—H21B0.9800
C7—C81.527 (3)C21—H21C0.9800
C7—H7A0.9900C22—C231.485 (3)
C7—H7B0.9900C23—C251.333 (4)
C8—C141.528 (3)C23—C241.511 (4)
C8—C91.542 (3)C24—H24A0.9800
C8—H81.0000C24—H24B0.9800
C9—C111.540 (3)C24—H24C0.9800
C9—C101.555 (3)C25—C261.492 (4)
C9—H91.0000C25—H250.9500
C10—C191.545 (3)C26—H26A0.9800
C11—C121.512 (3)C26—H26B0.9800
C11—H11A0.9900C26—H26C0.9800
C3—O1—H10H109.5C12—C13—C14107.59 (19)
C14—O2—H20H109.5C18—C13—C17115.3 (2)
C22—O4—C12119.14 (18)C12—C13—C17107.28 (19)
C2—C1—C10114.4 (2)C14—C13—C17103.22 (18)
C2—C1—H1A108.7O2—C14—C8104.46 (18)
C10—C1—H1A108.7O2—C14—C15108.09 (18)
C2—C1—H1B108.7C8—C14—C15117.7 (2)
C10—C1—H1B108.7O2—C14—C13110.49 (19)
H1A—C1—H1B107.6C8—C14—C13113.02 (17)
C3—C2—C1111.38 (19)C15—C14—C13103.07 (19)
C3—C2—H2A109.4C14—C15—C16104.0 (2)
C1—C2—H2A109.4C14—C15—H15A111.0
C3—C2—H2B109.4C16—C15—H15A111.0
C1—C2—H2B109.4C14—C15—H15B111.0
H2A—C2—H2B108.0C16—C15—H15B111.0
O1—C3—C2111.6 (2)H15A—C15—H15B109.0
O1—C3—C4110.8 (2)C15—C16—C17107.2 (2)
C2—C3—C4110.4 (2)C15—C16—H16A110.3
O1—C3—H3108.0C17—C16—H16A110.3
C2—C3—H3108.0C15—C16—H16B110.3
C4—C3—H3108.0C17—C16—H16B110.3
C5—C4—C3113.1 (2)H16A—C16—H16B108.5
C5—C4—H4A109.0C20—C17—C16112.9 (2)
C3—C4—H4A109.0C20—C17—C13112.3 (2)
C5—C4—H4B109.0C16—C17—C13105.12 (19)
C3—C4—H4B109.0C20—C17—H17108.8
H4A—C4—H4B107.8C16—C17—H17108.8
C6—C5—C4121.6 (2)C13—C17—H17108.8
C6—C5—C10122.9 (2)C13—C18—H18A109.5
C4—C5—C10115.52 (19)C13—C18—H18B109.5
C5—C6—C7124.3 (2)H18A—C18—H18B109.5
C5—C6—H6117.8C13—C18—H18C109.5
C7—C6—H6117.8H18A—C18—H18C109.5
C6—C7—C8111.86 (19)H18B—C18—H18C109.5
C6—C7—H7A109.2C10—C19—H19A109.5
C8—C7—H7A109.2C10—C19—H19B109.5
C6—C7—H7B109.2H19A—C19—H19B109.5
C8—C7—H7B109.2C10—C19—H19C109.5
H7A—C7—H7B107.9H19A—C19—H19C109.5
C7—C8—C14111.91 (18)H19B—C19—H19C109.5
C7—C8—C9108.7 (2)O3—C20—C21122.2 (2)
C14—C8—C9115.15 (19)O3—C20—C17121.0 (2)
C7—C8—H8106.9C21—C20—C17116.8 (2)
C14—C8—H8106.9C20—C21—H21A109.5
C9—C8—H8106.9C20—C21—H21B109.5
C11—C9—C8113.34 (18)H21A—C21—H21B109.5
C11—C9—C10111.96 (18)C20—C21—H21C109.5
C8—C9—C10110.35 (19)H21A—C21—H21C109.5
C11—C9—H9106.9H21B—C21—H21C109.5
C8—C9—H9106.9O5—C22—O4122.6 (2)
C10—C9—H9106.9O5—C22—C23124.1 (2)
C5—C10—C1108.17 (19)O4—C22—C23113.2 (2)
C5—C10—C19108.47 (19)C25—C23—C22120.1 (2)
C1—C10—C19109.41 (19)C25—C23—C24125.1 (2)
C5—C10—C9110.49 (19)C22—C23—C24114.7 (2)
C1—C10—C9108.76 (19)C23—C24—H24A109.5
C19—C10—C9111.48 (19)C23—C24—H24B109.5
C12—C11—C9112.20 (18)H24A—C24—H24B109.5
C12—C11—H11A109.2C23—C24—H24C109.5
C9—C11—H11A109.2H24A—C24—H24C109.5
C12—C11—H11B109.2H24B—C24—H24C109.5
C9—C11—H11B109.2C23—C25—C26127.7 (2)
H11A—C11—H11B107.9C23—C25—H25116.2
O4—C12—C11109.50 (17)C26—C25—H25116.2
O4—C12—C13106.10 (18)C25—C26—H26A109.5
C11—C12—C13113.3 (2)C25—C26—H26B109.5
O4—C12—H12109.3H26A—C26—H26B109.5
C11—C12—H12109.3C25—C26—H26C109.5
C13—C12—H12109.3H26A—C26—H26C109.5
C18—C13—C12110.73 (19)H26B—C26—H26C109.5
C18—C13—C14112.2 (2)
C10—C1—C2—C3−56.4 (3)O4—C12—C13—C17−69.3 (2)
C1—C2—C3—O1178.4 (2)C11—C12—C13—C17170.54 (19)
C1—C2—C3—C454.7 (3)C7—C8—C14—O2−67.2 (2)
O1—C3—C4—C5−176.92 (19)C9—C8—C14—O2168.12 (18)
C2—C3—C4—C5−52.8 (3)C7—C8—C14—C1552.7 (3)
C3—C4—C5—C6−128.9 (3)C9—C8—C14—C15−72.1 (3)
C3—C4—C5—C1051.8 (3)C7—C8—C14—C13172.7 (2)
C4—C5—C6—C7−176.5 (2)C9—C8—C14—C1348.0 (3)
C10—C5—C6—C72.7 (4)C18—C13—C14—O2−49.4 (2)
C5—C6—C7—C815.6 (4)C12—C13—C14—O2−171.42 (18)
C6—C7—C8—C14−176.4 (2)C17—C13—C14—O275.3 (2)
C6—C7—C8—C9−48.1 (3)C18—C13—C14—C867.3 (3)
C7—C8—C9—C11−168.6 (2)C12—C13—C14—C8−54.8 (2)
C14—C8—C9—C11−42.2 (3)C17—C13—C14—C8−168.0 (2)
C7—C8—C9—C1064.9 (2)C18—C13—C14—C15−164.7 (2)
C14—C8—C9—C10−168.70 (19)C12—C13—C14—C1573.3 (2)
C6—C5—C10—C1131.8 (3)C17—C13—C14—C15−39.9 (2)
C4—C5—C10—C1−48.9 (3)O2—C14—C15—C16−76.7 (2)
C6—C5—C10—C19−109.6 (3)C8—C14—C15—C16165.4 (2)
C4—C5—C10—C1969.7 (3)C13—C14—C15—C1640.3 (2)
C6—C5—C10—C912.9 (3)C14—C15—C16—C17−25.1 (3)
C4—C5—C10—C9−167.9 (2)C15—C16—C17—C20122.9 (2)
C2—C1—C10—C551.3 (3)C15—C16—C17—C130.2 (3)
C2—C1—C10—C19−66.7 (3)C18—C13—C17—C2023.8 (3)
C2—C1—C10—C9171.30 (19)C12—C13—C17—C20147.6 (2)
C11—C9—C10—C5−173.29 (19)C14—C13—C17—C20−98.9 (2)
C8—C9—C10—C5−46.0 (2)C18—C13—C17—C16147.0 (2)
C11—C9—C10—C168.1 (2)C12—C13—C17—C16−89.2 (2)
C8—C9—C10—C1−164.62 (18)C14—C13—C17—C1624.2 (2)
C11—C9—C10—C19−52.6 (3)C16—C17—C20—O3−37.5 (3)
C8—C9—C10—C1974.7 (2)C13—C17—C20—O381.1 (3)
C8—C9—C11—C1245.5 (3)C16—C17—C20—C21143.6 (2)
C10—C9—C11—C12171.1 (2)C13—C17—C20—C21−97.7 (2)
C22—O4—C12—C11−102.8 (2)C12—O4—C22—O59.5 (3)
C22—O4—C12—C13134.6 (2)C12—O4—C22—C23−168.83 (18)
C9—C11—C12—O4−174.75 (19)O5—C22—C23—C25176.5 (3)
C9—C11—C12—C13−56.5 (3)O4—C22—C23—C25−5.2 (3)
O4—C12—C13—C1857.3 (2)O5—C22—C23—C24−5.4 (4)
C11—C12—C13—C18−62.9 (2)O4—C22—C23—C24172.9 (2)
O4—C12—C13—C14−179.76 (17)C22—C23—C25—C26178.5 (2)
C11—C12—C13—C1460.1 (2)C24—C23—C25—C260.6 (4)
D—H···AD—HH···AD···AD—H···A
O1—H10H···O5i0.842.112.941 (3)173
O2—H20H···O30.842.102.886 (2)156
Table 1

Hydrogen-bond geometry (Å, °)

D—H⋯AD—HH⋯ADAD—H⋯A
O1—H10H⋯O5i0.842.112.941 (3)173
O2—H20H⋯O30.842.102.886 (2)156

Symmetry code: (i) .

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