Literature DB >> 22904935

(3E,5E)-3,5-Bis(4-methyl-benzyl-idene)-1-[3-(piperidin-1-yl)propano-yl]piperidin-4-one.

Yalda Kia, Hasnah Osman, Vikneswaran Murugaiyah, Suhana Arshad, Ibrahim Abdul Razak.   

Abstract

In the title compound, C(29)H(34)N(2)O(2), the central piperidine ring adopts a half-chair conformation, whereas the terminal one adopts a chair conformation. The mean plane of the central piperidine ring [maximum deviation = 0.384 (2) Å] makes dihedral angles of 64.82 (13) and 17.55 (13)° with the benzene rings. In the crystal, mol-ecules are linked into a tape along the b axis via C-H⋯O inter-actions, generating R(2) (2)(20) and R(2) (1)(6) graph-set motifs. C-H⋯π inter-actions are observed between the tapes.

Entities:  

Year:  2012        PMID: 22904935      PMCID: PMC3414948          DOI: 10.1107/S1600536812031820

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


Related literature

For biological activities of α,β-unsaturated ketones, see: Tanaka et al. (2003 ▶); Nakayachi et al. (2004 ▶); Lee et al. (2004 ▶); Hertzberg et al. (1989 ▶). For ring conformations, see: Cremer & Pople (1975 ▶). For related structures, see: Aridoss et al. (2010 ▶); Kia et al. (2011 ▶). For graph-set motifs, see: Bernstein et al. (1995 ▶). For the preparation of 1-acryloyl-3,5-dibenzyl­idenepiperidin-4-one, see: Dimmock et al. (2001 ▶). For the stability of the temperature controller used for data collection, see: Cosier & Glazer (1986 ▶).

Experimental

Crystal data

C29H34N2O2 M = 442.58 Monoclinic, a = 12.2913 (8) Å b = 9.9753 (8) Å c = 19.9993 (14) Å β = 100.884 (4)° V = 2408.0 (3) Å3 Z = 4 Mo Kα radiation μ = 0.08 mm−1 T = 100 K 0.46 × 0.25 × 0.20 mm

Data collection

Bruker SMART APEXII CCD area-detector diffractometer Absorption correction: multi-scan (SADABS; Bruker, 2009 ▶) T min = 0.966, T max = 0.985 18968 measured reflections 6852 independent reflections 3483 reflections with I > I > 2σ(I) R int = 0.075

Refinement

R[F 2 > 2σ(F 2)] = 0.078 wR(F 2) = 0.228 S = 1.04 6852 reflections 300 parameters H-atom parameters constrained Δρmax = 0.38 e Å−3 Δρmin = −0.37 e Å−3 Data collection: APEX2 (Bruker, 2009 ▶); cell refinement: SAINT (Bruker, 2009 ▶); 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 datablock(s) global, I. DOI: 10.1107/S1600536812031820/is5165sup1.cif Structure factors: contains datablock(s) I. DOI: 10.1107/S1600536812031820/is5165Isup2.hkl Supplementary material file. DOI: 10.1107/S1600536812031820/is5165Isup3.cml Additional supplementary materials: crystallographic information; 3D view; checkCIF report
C29H34N2O2F(000) = 952
Mr = 442.58Dx = 1.221 Mg m3
Monoclinic, P21/cMo Kα radiation, λ = 0.71073 Å
Hall symbol: -P 2ybcCell parameters from 3337 reflections
a = 12.2913 (8) Åθ = 2.3–29.9°
b = 9.9753 (8) ŵ = 0.08 mm1
c = 19.9993 (14) ÅT = 100 K
β = 100.884 (4)°Block, yellow
V = 2408.0 (3) Å30.46 × 0.25 × 0.20 mm
Z = 4
Bruker SMART APEXII CCD area-detector diffractometer6852 independent reflections
Radiation source: fine-focus sealed tube3483 reflections with I > I > 2σ(I)
Graphite monochromatorRint = 0.075
φ and ω scansθmax = 30.0°, θmin = 1.7°
Absorption correction: multi-scan (SADABS; Bruker, 2009)h = −17→17
Tmin = 0.966, Tmax = 0.985k = −13→11
18968 measured reflectionsl = −26→28
Refinement on F2Primary atom site location: structure-invariant direct methods
Least-squares matrix: fullSecondary atom site location: difference Fourier map
R[F2 > 2σ(F2)] = 0.078Hydrogen site location: inferred from neighbouring sites
wR(F2) = 0.228H-atom parameters constrained
S = 1.04w = 1/[σ2(Fo2) + (0.097P)2 + 0.6841P] where P = (Fo2 + 2Fc2)/3
6852 reflections(Δ/σ)max < 0.001
300 parametersΔρmax = 0.38 e Å3
0 restraintsΔρmin = −0.37 e Å3
Experimental. The crystal was placed in the cold stream of an Oxford Cryosystems Cobra open-flow nitrogen cryostat (Cosier & Glazer, 1986) operating at 100.0 (1) K.
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
O10.33838 (15)0.3747 (2)0.18190 (10)0.0257 (5)
O20.26832 (17)−0.1316 (2)0.11812 (11)0.0389 (6)
N10.39181 (18)−0.0171 (2)0.19541 (11)0.0226 (5)
N20.58294 (18)−0.2400 (2)0.05042 (11)0.0229 (5)
C10.6704 (2)0.2560 (3)0.07841 (14)0.0243 (6)
H1A0.61630.29640.04420.029*
C20.7717 (2)0.2198 (3)0.06313 (15)0.0249 (6)
H2A0.78540.23410.01850.030*
C30.8540 (2)0.1623 (3)0.11272 (15)0.0236 (6)
C40.8308 (2)0.1435 (3)0.17715 (14)0.0246 (6)
H4A0.88630.10650.21180.030*
C50.7293 (2)0.1768 (3)0.19258 (14)0.0243 (6)
H5A0.71550.16080.23710.029*
C60.6463 (2)0.2343 (3)0.14288 (13)0.0205 (6)
C70.5366 (2)0.2719 (3)0.15616 (13)0.0215 (6)
H7A0.50850.35620.13870.026*
C80.4717 (2)0.2015 (3)0.18984 (13)0.0192 (6)
C90.3625 (2)0.2580 (3)0.19813 (13)0.0199 (6)
C100.2861 (2)0.1705 (3)0.22883 (13)0.0191 (6)
C110.3075 (2)0.0209 (3)0.23378 (14)0.0222 (6)
H11A0.3320−0.00460.28210.027*
H11B0.2380−0.02790.21580.027*
C120.4938 (2)0.0595 (3)0.21510 (14)0.0234 (6)
H12A0.55360.01920.19470.028*
H12B0.51740.05900.26520.028*
C130.2031 (2)0.2322 (3)0.25215 (13)0.0203 (6)
H13A0.19850.32580.24310.024*
C140.1187 (2)0.1830 (3)0.28866 (13)0.0199 (6)
C150.0454 (2)0.2783 (3)0.30679 (14)0.0226 (6)
H15A0.05130.36890.29330.027*
C16−0.0347 (2)0.2446 (3)0.34341 (14)0.0225 (6)
H16A−0.08280.31200.35470.027*
C17−0.0461 (2)0.1121 (3)0.36419 (14)0.0207 (6)
C180.0264 (2)0.0167 (3)0.34587 (14)0.0234 (6)
H18A0.0196−0.07390.35900.028*
C190.1072 (2)0.0493 (3)0.30944 (13)0.0220 (6)
H19A0.1552−0.01820.29830.026*
C200.9643 (2)0.1219 (3)0.09596 (16)0.0323 (7)
H20A1.02360.14170.13480.049*
H20B0.97710.17200.05600.049*
H20C0.96370.02560.08610.049*
C21−0.1308 (2)0.0747 (3)0.40574 (15)0.0285 (7)
H21A−0.18060.15070.40760.043*
H21B−0.09350.05110.45200.043*
H21C−0.1737−0.00240.38480.043*
C220.3612 (2)−0.0824 (3)0.13444 (15)0.0255 (7)
C230.4436 (2)−0.0929 (3)0.08775 (14)0.0260 (7)
H23A0.4927−0.01340.09400.031*
H23B0.4036−0.09380.03990.031*
C240.5139 (2)−0.2201 (3)0.10200 (14)0.0262 (7)
H24A0.5620−0.21330.14750.031*
H24B0.4646−0.29860.10220.031*
C250.6299 (2)−0.3755 (3)0.05634 (14)0.0249 (6)
H25A0.5691−0.44180.05250.030*
H25B0.6777−0.38620.10170.030*
C260.6971 (2)−0.4027 (3)0.00178 (15)0.0262 (7)
H26A0.6476−0.4022−0.04340.031*
H26B0.7315−0.49250.00910.031*
C270.7874 (2)−0.2969 (3)0.00328 (16)0.0292 (7)
H27A0.8437−0.30690.04550.035*
H27B0.8245−0.3100−0.03610.035*
C280.7380 (2)−0.1587 (3)0.00057 (16)0.0292 (7)
H28A0.6891−0.1447−0.04430.035*
H28B0.7979−0.09110.00570.035*
C290.6719 (2)−0.1403 (3)0.05646 (15)0.0255 (6)
H29A0.7215−0.14950.10130.031*
H29B0.6396−0.04910.05360.031*
U11U22U33U12U13U23
O10.0260 (10)0.0216 (11)0.0307 (11)0.0049 (9)0.0085 (9)0.0044 (9)
O20.0363 (12)0.0433 (15)0.0414 (13)−0.0166 (11)0.0183 (11)−0.0151 (11)
N10.0239 (11)0.0220 (13)0.0249 (12)0.0008 (10)0.0120 (10)−0.0035 (10)
N20.0246 (11)0.0216 (14)0.0245 (12)0.0006 (10)0.0098 (10)−0.0003 (10)
C10.0259 (14)0.0223 (16)0.0255 (14)0.0006 (12)0.0070 (12)0.0005 (12)
C20.0298 (15)0.0238 (16)0.0232 (14)−0.0056 (12)0.0101 (12)0.0028 (12)
C30.0223 (13)0.0180 (15)0.0325 (16)−0.0036 (11)0.0103 (12)−0.0052 (12)
C40.0192 (13)0.0281 (17)0.0256 (15)−0.0023 (12)0.0019 (11)−0.0021 (13)
C50.0292 (15)0.0244 (16)0.0194 (14)−0.0030 (12)0.0044 (12)−0.0027 (12)
C60.0225 (13)0.0160 (14)0.0228 (14)−0.0038 (11)0.0036 (11)−0.0015 (11)
C70.0226 (13)0.0195 (15)0.0220 (14)−0.0009 (11)0.0033 (11)−0.0020 (11)
C80.0197 (13)0.0198 (15)0.0185 (13)−0.0001 (11)0.0047 (11)−0.0007 (11)
C90.0219 (13)0.0228 (16)0.0149 (12)0.0025 (11)0.0027 (10)−0.0031 (11)
C100.0204 (13)0.0211 (15)0.0156 (13)−0.0008 (11)0.0033 (10)−0.0004 (11)
C110.0264 (14)0.0184 (15)0.0252 (14)−0.0029 (12)0.0137 (12)−0.0001 (12)
C120.0221 (13)0.0235 (16)0.0253 (15)0.0031 (11)0.0064 (12)0.0009 (12)
C130.0219 (13)0.0161 (14)0.0231 (14)−0.0004 (11)0.0043 (11)−0.0015 (11)
C140.0176 (12)0.0221 (15)0.0203 (13)−0.0016 (11)0.0041 (11)−0.0027 (11)
C150.0229 (13)0.0172 (15)0.0292 (15)0.0047 (11)0.0085 (12)0.0018 (12)
C160.0224 (13)0.0226 (16)0.0240 (14)0.0023 (12)0.0078 (11)0.0003 (12)
C170.0200 (13)0.0217 (16)0.0219 (14)0.0011 (11)0.0075 (11)−0.0023 (12)
C180.0280 (14)0.0188 (15)0.0250 (14)−0.0031 (12)0.0093 (12)0.0021 (12)
C190.0267 (14)0.0183 (15)0.0223 (14)0.0002 (11)0.0080 (12)−0.0018 (11)
C200.0296 (15)0.0337 (19)0.0368 (18)−0.0018 (14)0.0143 (14)−0.0030 (15)
C210.0287 (15)0.0249 (17)0.0342 (17)0.0016 (13)0.0121 (13)−0.0002 (13)
C220.0286 (15)0.0220 (16)0.0280 (15)−0.0002 (12)0.0105 (12)−0.0013 (13)
C230.0286 (14)0.0266 (17)0.0253 (15)−0.0003 (13)0.0113 (12)−0.0013 (13)
C240.0287 (15)0.0274 (17)0.0247 (15)0.0014 (13)0.0108 (12)0.0014 (13)
C250.0283 (14)0.0202 (16)0.0274 (15)0.0015 (12)0.0082 (12)0.0013 (12)
C260.0292 (15)0.0232 (16)0.0296 (15)0.0041 (12)0.0142 (13)0.0011 (13)
C270.0277 (15)0.0261 (17)0.0368 (17)0.0033 (13)0.0135 (13)−0.0010 (14)
C280.0301 (15)0.0251 (17)0.0355 (17)−0.0019 (13)0.0143 (14)0.0001 (14)
C290.0295 (14)0.0208 (16)0.0284 (15)−0.0047 (12)0.0116 (13)−0.0009 (12)
O1—C91.230 (3)C15—C161.375 (4)
O2—C221.229 (3)C15—H15A0.9500
N1—C221.371 (4)C16—C171.400 (4)
N1—C111.451 (3)C16—H16A0.9500
N1—C121.457 (3)C17—C181.399 (4)
N2—C251.465 (4)C17—C211.496 (4)
N2—C291.466 (3)C18—C191.377 (4)
N2—C241.468 (4)C18—H18A0.9500
C1—C21.384 (4)C19—H19A0.9500
C1—C61.394 (4)C20—H20A0.9800
C1—H1A0.9500C20—H20B0.9800
C2—C31.399 (4)C20—H20C0.9800
C2—H2A0.9500C21—H21A0.9800
C3—C41.384 (4)C21—H21B0.9800
C3—C201.511 (4)C21—H21C0.9800
C4—C51.381 (4)C22—C231.505 (4)
C4—H4A0.9500C23—C241.532 (4)
C5—C61.405 (4)C23—H23A0.9900
C5—H5A0.9500C23—H23B0.9900
C6—C71.471 (4)C24—H24A0.9900
C7—C81.336 (4)C24—H24B0.9900
C7—H7A0.9500C25—C261.513 (4)
C8—C91.493 (4)C25—H25A0.9900
C8—C121.511 (4)C25—H25B0.9900
C9—C101.497 (4)C26—C271.527 (4)
C10—C131.349 (4)C26—H26A0.9900
C10—C111.515 (4)C26—H26B0.9900
C11—H11A0.9900C27—C281.504 (4)
C11—H11B0.9900C27—H27A0.9900
C12—H12A0.9900C27—H27B0.9900
C12—H12B0.9900C28—C291.512 (4)
C13—C141.462 (4)C28—H28A0.9900
C13—H13A0.9500C28—H28B0.9900
C14—C151.403 (4)C29—H29A0.9900
C14—C191.412 (4)C29—H29B0.9900
C22—N1—C11119.4 (2)C19—C18—C17122.5 (3)
C22—N1—C12124.6 (2)C19—C18—H18A118.8
C11—N1—C12112.6 (2)C17—C18—H18A118.8
C25—N2—C29110.1 (2)C18—C19—C14120.1 (3)
C25—N2—C24109.8 (2)C18—C19—H19A120.0
C29—N2—C24111.8 (2)C14—C19—H19A120.0
C2—C1—C6121.4 (3)C3—C20—H20A109.5
C2—C1—H1A119.3C3—C20—H20B109.5
C6—C1—H1A119.3H20A—C20—H20B109.5
C1—C2—C3120.7 (3)C3—C20—H20C109.5
C1—C2—H2A119.7H20A—C20—H20C109.5
C3—C2—H2A119.7H20B—C20—H20C109.5
C4—C3—C2117.8 (2)C17—C21—H21A109.5
C4—C3—C20121.4 (3)C17—C21—H21B109.5
C2—C3—C20120.7 (3)H21A—C21—H21B109.5
C5—C4—C3121.9 (3)C17—C21—H21C109.5
C5—C4—H4A119.0H21A—C21—H21C109.5
C3—C4—H4A119.0H21B—C21—H21C109.5
C4—C5—C6120.4 (3)O2—C22—N1120.8 (3)
C4—C5—H5A119.8O2—C22—C23120.5 (3)
C6—C5—H5A119.8N1—C22—C23118.7 (2)
C1—C6—C5117.7 (2)C22—C23—C24111.3 (2)
C1—C6—C7119.4 (2)C22—C23—H23A109.4
C5—C6—C7123.0 (3)C24—C23—H23A109.4
C8—C7—C6127.7 (3)C22—C23—H23B109.4
C8—C7—H7A116.1C24—C23—H23B109.4
C6—C7—H7A116.1H23A—C23—H23B108.0
C7—C8—C9119.5 (2)N2—C24—C23111.2 (2)
C7—C8—C12125.1 (2)N2—C24—H24A109.4
C9—C8—C12115.2 (2)C23—C24—H24A109.4
O1—C9—C8120.4 (3)N2—C24—H24B109.4
O1—C9—C10121.5 (2)C23—C24—H24B109.4
C8—C9—C10118.1 (2)H24A—C24—H24B108.0
C13—C10—C9116.7 (3)N2—C25—C26111.6 (2)
C13—C10—C11124.1 (2)N2—C25—H25A109.3
C9—C10—C11119.2 (2)C26—C25—H25A109.3
N1—C11—C10110.8 (2)N2—C25—H25B109.3
N1—C11—H11A109.5C26—C25—H25B109.3
C10—C11—H11A109.5H25A—C25—H25B108.0
N1—C11—H11B109.5C25—C26—C27110.8 (2)
C10—C11—H11B109.5C25—C26—H26A109.5
H11A—C11—H11B108.1C27—C26—H26A109.5
N1—C12—C8108.1 (2)C25—C26—H26B109.5
N1—C12—H12A110.1C27—C26—H26B109.5
C8—C12—H12A110.1H26A—C26—H26B108.1
N1—C12—H12B110.1C28—C27—C26110.2 (2)
C8—C12—H12B110.1C28—C27—H27A109.6
H12A—C12—H12B108.4C26—C27—H27A109.6
C10—C13—C14132.4 (3)C28—C27—H27B109.6
C10—C13—H13A113.8C26—C27—H27B109.6
C14—C13—H13A113.8H27A—C27—H27B108.1
C15—C14—C19117.3 (3)C27—C28—C29110.8 (3)
C15—C14—C13116.9 (3)C27—C28—H28A109.5
C19—C14—C13125.7 (3)C29—C28—H28A109.5
C16—C15—C14122.1 (3)C27—C28—H28B109.5
C16—C15—H15A119.0C29—C28—H28B109.5
C14—C15—H15A119.0H28A—C28—H28B108.1
C15—C16—C17120.7 (3)N2—C29—C28110.7 (2)
C15—C16—H16A119.6N2—C29—H29A109.5
C17—C16—H16A119.6C28—C29—H29A109.5
C18—C17—C16117.4 (3)N2—C29—H29B109.5
C18—C17—C21121.3 (3)C28—C29—H29B109.5
C16—C17—C21121.3 (3)H29A—C29—H29B108.1
C6—C1—C2—C3−1.2 (4)C11—C10—C13—C143.1 (4)
C1—C2—C3—C4−0.2 (4)C10—C13—C14—C15178.4 (3)
C1—C2—C3—C20179.6 (3)C10—C13—C14—C191.0 (5)
C2—C3—C4—C51.4 (4)C19—C14—C15—C160.2 (4)
C20—C3—C4—C5−178.3 (3)C13—C14—C15—C16−177.5 (2)
C3—C4—C5—C6−1.3 (4)C14—C15—C16—C170.0 (4)
C2—C1—C6—C51.3 (4)C15—C16—C17—C18−0.3 (4)
C2—C1—C6—C7−178.7 (3)C15—C16—C17—C21178.3 (3)
C4—C5—C6—C10.0 (4)C16—C17—C18—C190.6 (4)
C4—C5—C6—C7179.9 (3)C21—C17—C18—C19−178.0 (2)
C1—C6—C7—C8136.4 (3)C17—C18—C19—C14−0.5 (4)
C5—C6—C7—C8−43.5 (4)C15—C14—C19—C180.1 (4)
C6—C7—C8—C9179.7 (2)C13—C14—C19—C18177.6 (2)
C6—C7—C8—C12−7.0 (4)C11—N1—C22—O2−14.0 (4)
C7—C8—C9—O1−9.2 (4)C12—N1—C22—O2−171.4 (3)
C12—C8—C9—O1176.9 (2)C11—N1—C22—C23166.0 (2)
C7—C8—C9—C10173.0 (2)C12—N1—C22—C238.7 (4)
C12—C8—C9—C10−1.0 (3)O2—C22—C23—C24−89.8 (3)
O1—C9—C10—C13−14.8 (4)N1—C22—C23—C2490.2 (3)
C8—C9—C10—C13163.1 (2)C25—N2—C24—C23−167.5 (2)
O1—C9—C10—C11166.9 (2)C29—N2—C24—C2370.0 (3)
C8—C9—C10—C11−15.3 (3)C22—C23—C24—N2171.9 (2)
C22—N1—C11—C10−105.7 (3)C29—N2—C25—C26−59.3 (3)
C12—N1—C11—C1054.2 (3)C24—N2—C25—C26177.2 (2)
C13—C10—C11—N1171.5 (2)N2—C25—C26—C2755.5 (3)
C9—C10—C11—N1−10.3 (3)C25—C26—C27—C28−52.5 (3)
C22—N1—C12—C887.9 (3)C26—C27—C28—C2954.1 (3)
C11—N1—C12—C8−70.9 (3)C25—N2—C29—C2860.6 (3)
C7—C8—C12—N1−132.5 (3)C24—N2—C29—C28−177.1 (2)
C9—C8—C12—N141.0 (3)C27—C28—C29—N2−58.7 (3)
C9—C10—C13—C14−175.2 (2)
D—H···AD—HH···AD···AD—H···A
C16—H16A···O2i0.952.513.346 (3)147
C21—H21A···O2i0.982.443.371 (4)160
C21—H21C···O1ii0.982.523.446 (3)157
C4—H4A···Cg1iii0.952.693.526 (3)148
C27—H27A···Cg1iv0.992.743.719 (3)168
Table 1

Hydrogen-bond geometry (Å, °)

Cg1 is the centroid of the benzene C14–C19 ring.

D—H⋯A D—HH⋯A DA D—H⋯A
C16—H16A⋯O2i 0.952.513.346 (3)147
C21—H21A⋯O2i 0.982.443.371 (4)160
C21—H21C⋯O1ii 0.982.523.446 (3)157
C4—H4ACg1iii 0.952.693.526 (3)148
C27—H27ACg1iv 0.992.743.719 (3)168

Symmetry codes: (i) ; (ii) ; (iii) ; (iv) .

  8 in total

1.  A short history of SHELX.

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

2.  Cytotoxicity of sesquiterpene lactones.

Authors:  K H Lee; E S Huang; C Piantadosi; J S Pagano; T A Geissman
Journal:  Cancer Res       Date:  1971-11       Impact factor: 12.701

3.  Modification of the hydroxy lactone ring of camptothecin: inhibition of mammalian topoisomerase I and biological activity.

Authors:  R P Hertzberg; M J Caranfa; K G Holden; D R Jakas; G Gallagher; M R Mattern; S M Mong; J O Bartus; R K Johnson; W D Kingsbury
Journal:  J Med Chem       Date:  1989-03       Impact factor: 7.446

4.  Urease inhibitory activity of simple alpha,beta-unsaturated ketones.

Authors:  Toru Tanaka; Masami Kawase; Satoru Tani
Journal:  Life Sci       Date:  2003-10-24       Impact factor: 5.037

5.  Structure-activity relationships of alpha, beta-unsaturated ketones as assessed by their cytotoxicity against oral tumor cells.

Authors:  Tohru Nakayachi; Eiji Yasumoto; Kensuke Nakano; Sufi Reza Md Morshed; Ken Hashimoto; Hirotaka Kikuchi; Hirofumi Nishikawa; Masami Kawase; Hiroshi Sakagami
Journal:  Anticancer Res       Date:  2004 Mar-Apr       Impact factor: 2.480

6.  Ethyl 4-hy-droxy-2,6-diphenyl-1-[2-(piperidin-1-yl)acet-yl]-1,2,5,6-tetra-hydro-pyridine-3-carboxyl-ate.

Authors:  G Aridoss; S Sundaramoorthy; D Velmurugan; K S Park; Y T Jeong
Journal:  Acta Crystallogr Sect E Struct Rep Online       Date:  2010-07-14

7.  (3E,5E)-3,5-Dibenzyl-idene-1-[3-(piperidin-1-yl)propano-yl]piperidin-4-one.

Authors:  Yalda Kia; Hasnah Osman; Vikneswaran Murugaiyah; Madhukar Hemamalini; Hoong-Kun Fun
Journal:  Acta Crystallogr Sect E Struct Rep Online       Date:  2011-05-07

8.  Structure validation in chemical crystallography.

Authors:  Anthony L Spek
Journal:  Acta Crystallogr D Biol Crystallogr       Date:  2009-01-20
  8 in total
  1 in total

1.  Crystal structure and features of 3',8-di-benzyl-idene-4a,5,6,7,8,8a-hexa-hydro-2'H-spiro-[chromene-2,1'-cyclo-hexa-n]-2'-one.

Authors:  Alexander Anis'kov; Vyacheslav Grinev; Irina Klochkova
Journal:  Acta Crystallogr E Crystallogr Commun       Date:  2017-10-06
  1 in total

北京卡尤迪生物科技股份有限公司 © 2022-2023.