Home Crystal structure of (1S,3aR,3bR,10aR,10bR,12aR)-8-amino-3a,3b,6,6,10a-pentamethyl-1-((S)-2,6,6-trimethyltetrahydro-2H-pyran-2-yl)-2,3,3a,3b,4,5,5a,6,10,10a,10b,11,12,12a-tetradecahydro-1H-cyclopenta[7,8]phenanthro[2,3-d]thiazol-12-ol – a panaxadiol dervative, C31H50N2O2S
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Crystal structure of (1S,3aR,3bR,10aR,10bR,12aR)-8-amino-3a,3b,6,6,10a-pentamethyl-1-((S)-2,6,6-trimethyltetrahydro-2H-pyran-2-yl)-2,3,3a,3b,4,5,5a,6,10,10a,10b,11,12,12a-tetradecahydro-1H-cyclopenta[7,8]phenanthro[2,3-d]thiazol-12-ol – a panaxadiol dervative, C31H50N2O2S

  • Jia-Zhen Wang , Wei-Zhao Weng , Ying Ma , Xiu-Ting He and Qing-Guo Meng EMAIL logo
Published/Copyright: February 4, 2019

Abstract

C31H50N2O2S, orthorhombic, P212121 (no. 19), a = 11.9922(9) Å, b = 16.7099(8) Å, c = 29.1262(16) Å, V = 5836.6(6) Å3, Z = 8, Rgt(F) = 0.0654, wRref(F2) = 0.1230, T = 293(2) K.

CCDC no.: 1858965

The asymmetric unit, consisting of two independent title molecules, of the crystal structure is shown in the figure. Tables 1 and 2 contain details on crystal structure and measurement conditions and a list of the atoms including atomic coordinates and displacement parameters.

Table 1:

Data collection and handling.

Crystal:Colourless block
Size:0.42 × 0.32 × 0.30 mm
Wavelength:Cu Kα radiation (1.54178 Å)
μ:1.20 mm−1
Diffractometer, scan mode:Bruker SMART, φ and ω
θmax, completeness:66.0°, >99%
N(hkl)measured, N(hkl)unique, Rint:13666, 9090, 0.052
Criterion for Iobs, N(hkl)gt:Iobs > 2 σ(Iobs), 4692
N(param)refined:666
Programs:Bruker [1], SHELX [2], [3], [4]
Table 2:

Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2).

AtomxyzUiso*/Ueq
N1A0.5240(5)0.0172(4)0.54813(19)0.0494(17)
N2A0.5564(5)−0.0442(3)0.6197(2)0.067(2)
H2A10.564385−0.0908520.6076760.081*
H2A20.562238−0.0381410.6489100.081*
O1A0.5350(5)0.5452(3)0.53723(16)0.0780(19)
H1A0.5275430.5911950.5278680.094*
O2A0.4914(4)0.6838(3)0.49602(15)0.0476(13)
S1A0.51516(19)0.11615(12)0.61583(6)0.0601(6)
C1A0.4800(6)0.2399(4)0.5495(2)0.049(2)
H1A10.5209140.2716230.5717650.058*
H1A20.4018600.2544080.5514430.058*
C2A0.4938(6)0.1533(4)0.5600(2)0.0444(19)
C3A0.5022(6)0.0923(4)0.5305(2)0.0426(18)
C4A0.4923(7)0.1036(5)0.4789(2)0.049(2)
C5A0.4721(6)0.1942(4)0.4679(2)0.0430(19)
H5A0.3915240.2015950.4715780.052*
C6A0.4948(8)0.2142(4)0.4173(2)0.064(2)
H6A10.5742290.2104440.4114570.077*
H6A20.4574880.1752310.3980030.077*
C7A0.4547(7)0.2975(4)0.4046(2)0.063(3)
H7A10.3740040.2987090.4070530.075*
H7A20.4737660.3076190.3727980.075*
C8A0.5025(6)0.3649(4)0.4340(2)0.0449(19)
C9A0.4868(6)0.3419(4)0.4855(2)0.0395(18)
H9A0.4057060.3409040.4896360.047*
C10A0.5249(5)0.2571(4)0.5002(2)0.0389(17)
C11A0.5261(6)0.4092(4)0.5171(2)0.048(2)
H11A0.5070640.3949860.5484140.057*
H11B0.6067320.4123100.5152680.057*
C12A0.4788(6)0.4916(4)0.5072(2)0.050(2)
H12A0.3991350.4917310.5146760.060*
C13A0.4928(6)0.5124(4)0.4565(2)0.0407(18)
H13A0.5732010.5131460.4505040.049*
C14A0.4428(6)0.4464(4)0.4254(2)0.0437(19)
C15A0.4576(7)0.4847(4)0.3776(2)0.064(2)
H15A0.5326760.4762610.3661230.077*
H15B0.4048540.4625150.3557890.077*
C16A0.4352(7)0.5737(4)0.3857(3)0.064(2)
H16A0.3608570.5873400.3751180.077*
H16B0.4885160.6057060.3686120.077*
C17A0.4460(6)0.5915(4)0.4380(2)0.048(2)
H17A0.3704490.5977390.4503580.058*
C18A0.6287(6)0.3727(4)0.4215(2)0.065(2)
H18A0.6601890.3203430.4174550.097*
H18B0.6672100.3998610.4458690.097*
H18C0.6363200.4026750.3935950.097*
C19A0.6537(5)0.2484(4)0.5036(2)0.057(2)
H19A0.6717900.2010120.5206640.086*
H19B0.6842270.2943510.5188810.086*
H19C0.6847560.2445200.4732780.086*
C20A0.5094(7)0.6696(5)0.4474(2)0.049(2)
C21A0.6352(6)0.6601(4)0.4378(3)0.067(3)
H21A0.6693030.7120120.4361270.101*
H21B0.6455500.6325740.4092130.101*
H21C0.6689650.6298850.4621440.101*
C22A0.4594(7)0.7389(4)0.4201(2)0.067(3)
H22A0.3788330.7342330.4205840.080*
H22B0.4834810.7345800.3884120.080*
C23A0.4919(8)0.8215(4)0.4383(3)0.079(3)
H23A0.5716730.8293240.4350980.095*
H23B0.4541000.8627220.4208080.095*
C24A0.4589(7)0.8272(5)0.4888(3)0.069(3)
H24A0.4833760.8784060.5009250.083*
H24B0.3782510.8252300.4912780.083*
C25A0.5086(7)0.7607(5)0.5176(3)0.052(2)
C26A0.4507(6)0.7534(5)0.5636(2)0.072(3)
H26A0.3743080.7383350.5588870.108*
H26B0.4536970.8038360.5792930.108*
H26C0.4873980.7132910.5817440.108*
C27A0.6342(6)0.7761(5)0.5267(3)0.077(3)
H27A0.6664440.7299960.5412120.116*
H27B0.6424070.8217710.5463850.116*
H27C0.6714450.7860090.4980830.116*
C28A0.3910(6)0.0551(4)0.4623(2)0.072(3)
H28A0.402963−0.0006070.4685610.108*
H28B0.3815140.0627640.4298680.108*
H28C0.3253720.0730380.4781160.108*
C29A0.5967(6)0.0683(4)0.4553(2)0.067(3)
H29A0.6614440.0978310.4646680.100*
H29B0.5883700.0718130.4226100.100*
H29C0.6050670.0131930.4640670.100*
C30A0.3143(5)0.4401(4)0.4334(3)0.065(2)
H30A0.2813740.4922820.4311310.098*
H30B0.3003650.4184950.4634390.098*
H30C0.2822050.4055170.4106600.098*
C31A0.5342(7)0.0204(5)0.5923(3)0.052(2)
N1B0.7183(5)0.4890(3)0.68917(19)0.0481(17)
N2B0.6965(5)0.5467(3)0.6161(2)0.068(2)
H2B10.7125950.5939480.6258040.081*
H2B20.6808540.5391800.5876280.081*
O1B0.6989(5)−0.0377(3)0.70210(17)0.084(2)
H1B0.701687−0.0826270.7133560.101*
O2B0.7016(4)−0.1729(3)0.74797(16)0.0499(14)
S2B0.66584(19)0.38746(13)0.62595(6)0.0603(6)
C1B0.6787(7)0.2658(4)0.6939(2)0.052(2)
H1B10.7071280.2339080.6686530.062*
H1B20.6014800.2509660.6990360.062*
C2B0.6858(6)0.3521(4)0.6821(2)0.050(2)
C3B0.7121(6)0.4140(4)0.7092(2)0.044(2)
C4B0.7354(7)0.4027(4)0.7600(2)0.051(2)
C5B0.7173(6)0.3130(4)0.7735(2)0.0403(18)
H5B0.6363200.3079830.7770920.048*
C6B0.7640(7)0.2927(4)0.8212(2)0.057(2)
H6B10.8447950.2929460.8199460.068*
H6B20.7406990.3333710.8428970.068*
C7B0.7241(7)0.2112(4)0.8377(2)0.056(2)
H7B10.6437970.2130360.8416660.068*
H7B20.7569240.2004790.8675330.068*
C8B0.7529(6)0.1422(4)0.8053(2)0.0441(19)
C9B0.7133(6)0.1654(4)0.7561(2)0.0400(18)
H9B0.6320370.1690500.7590710.048*
C10B0.7474(6)0.2489(4)0.7375(2)0.0411(18)
C11B0.7305(6)0.0967(4)0.7222(2)0.052(2)
H11C0.7005630.1122510.6926180.062*
H11D0.8099340.0877600.7184260.062*
C12B0.6763(7)0.0188(4)0.7369(2)0.053(2)
H12B0.5954550.0272540.7380720.064*
C13B0.7152(6)−0.0040(4)0.7843(2)0.0419(19)
H13B0.796505−0.0085290.7822290.050*
C14B0.6920(6)0.0635(4)0.8198(2)0.0418(19)
C15B0.7285(6)0.0227(4)0.8649(2)0.056(2)
H15C0.8090940.0224660.8677350.067*
H15D0.6967320.0497390.8912800.067*
C16B0.6832(6)−0.0623(4)0.8606(2)0.058(2)
H16C0.610306−0.0659660.8748840.070*
H16D0.732851−0.0997510.8757170.070*
C17B0.6747(6)−0.0820(4)0.8086(2)0.047(2)
H17B0.595334−0.0881300.8013930.057*
C18B0.8817(5)0.1297(4)0.8079(2)0.058(2)
H18D0.9186580.1799370.8030350.087*
H18E0.9043700.0923170.7847180.087*
H18F0.9011690.1091960.8376470.087*
C19B0.8732(5)0.2537(4)0.7233(2)0.055(2)
H19D0.9176990.2658110.7498630.083*
H19E0.8828280.2950400.7007750.083*
H19F0.8962990.2033360.7106880.083*
C20B0.7320(6)−0.1609(5)0.7957(2)0.045(2)
C21B0.8590(6)−0.1551(4)0.8011(3)0.063(2)
H21D0.890640−0.2078700.8009510.094*
H21E0.876483−0.1291020.8296020.094*
H21F0.889394−0.1246540.7761030.094*
C22B0.6861(7)−0.2307(4)0.8242(2)0.058(2)
H22C0.718010−0.2284000.8547380.070*
H22D0.606011−0.2246800.8271070.070*
C23B0.7113(7)−0.3123(4)0.8032(3)0.063(2)
H23C0.677169−0.3540390.8216380.076*
H23D0.791239−0.3212760.8028430.076*
C24B0.6655(7)−0.3156(4)0.7542(3)0.062(2)
H24C0.684116−0.3668260.7406120.075*
H24D0.584855−0.3111830.7551440.075*
C25B0.7122(7)−0.2491(5)0.7245(3)0.054(2)
C26B0.6445(7)−0.2380(5)0.6806(2)0.075(3)
H26D0.568626−0.2256960.6883620.112*
H26E0.646734−0.2864620.6629190.112*
H26F0.675646−0.1949690.6629730.112*
C27B0.8342(6)−0.2663(4)0.7108(3)0.069(3)
H27D0.865407−0.2198480.6963170.104*
H27E0.836356−0.3106330.6899060.104*
H27F0.876695−0.2790830.7377960.104*
C28B0.6484(7)0.4543(4)0.7863(2)0.077(3)
H28D0.6581700.5096250.7782810.116*
H28E0.6588030.4476930.8187090.116*
H28F0.5745080.4375390.7779850.116*
C29B0.8510(7)0.4365(4)0.7715(2)0.079(3)
H29D0.9073710.4035900.7576120.119*
H29E0.8611100.4370490.8041490.119*
H29F0.8569630.4900700.7597780.119*
C30B0.5629(5)0.0762(4)0.8246(2)0.059(2)
H30D0.5257460.0254380.8227210.089*
H30E0.5370930.1103390.8003020.089*
H30F0.5468890.1006580.8536860.089*
C31B0.6960(6)0.4839(5)0.6459(3)0.052(2)

Source of material

Panaxadiol (PD; systematic name: (3S,5R,8R,9R,10R,12R,13R,14R,17S)-4,4,8,10,14-pentamethyl-17-((R)-2,6,6-trimethyltetra-hydro-2H-pyran-2-yl)hexadecahydro-1H-cyclopenta[a]phen-anthrene-3,12-diol) was isolated from the degradation residues of Panax ginseng treated with 10% H2SO4, and purified by silica gel column chromatography. After recrystallization in ethyl acetate and CH2Cl2, the pure white needle – like crystal line product was obtained. PD was oxidized by pyridinium chlorochromate in dry dichloromethane to get the 3-Oxo-PD; then the products occur bromine reaction with pyridinium tribromide in acetic acid and stirred at room temperature to get the 2-bromo-3-oxo-PD. 2-Bromo-3-oxo-PD, thiourea was added in ethanol, stirred at 80 °C for 8 h. The solution was then washed successively with water and saturated with sodium chloride solution, and dried over anhydrous sodium sulfate. After filtration, the ethyl acetate was evaporated in vacuo to yield a white solid, which was purified using silica-gel column chromatography (petroleum ether:ethyl acetate = 3:1, v/v). Crystals were obtained by slow concentration of an ethyl acetate solution. HRMS calcd. for C31H50N2O2S [M+H]+ 515.36; found 515.33. 1H NMR (400 MHz, CDCl3) δ 6.31 (s, 1H), 3.55 (tt, J = 10.3, 4.9 Hz, 1H), 2.58 (d, J = 15.4 Hz, 1H), 2.17 (d, J = 15.2 Hz, 1H), 1.98 (s, 2H), 1.77 (dd, J = 22.3, 11.4 Hz, 2H), 1.66 (dd, J = 19.9, 9.2 Hz, 1H), 1.59 (d, J = 12.7 Hz, 6H), 1.51 − 1.45 (m, 2H), 1.41 − 1.30 (m, 3H), 1.26 (s, 3H), 1.24 (d, J = 2.3 Hz, 3H), 1.20 (s, 6H), 1.19 (s, 3H), 1.11 (d, J = 3.5 Hz, 3H), 1.02 (d, J = 2.5 Hz, 3H), 0.93 (d, J = 2.5 Hz, 3H), 0.89 (d, J = 2.5 Hz, 6H).

Experimental details

All H atoms were included in calculated positions and refined as riding atoms, with O—H = 0.82 Å (—OH), Uiso (H) = 1.5Ueq(O), and with O—H = 0.82 or 0.85 Å (—OH), Uiso (H) = 1.2Ueq(O) (SHELX [1], [2], [3], [4]). The methylene and methyl H atoms were placed in geometrically idealized positions and constrained to ride on their parent C atoms, with C—H = 0.96 Å (—CH), 0.97 Å (—CH2), Uiso (H) = 1.2Ueq(C) and C—H = 0.96 Å (—CH3), Uiso (H) = 1.5Ueq(C).

The absolute configuration was verified by a Flack-Parsons parameter of 0.01(2) based on 1015 quotients [4].

Comment

20(R)-panaxadiol (PD) is a significant apogenin of ginsenosides, which can be achieved by acid hydrolysis from leaves and stems of ginseng. It has been reported to have strong anticancer activities, and the mechanism involved in inducing apoptosis [5]. It has been reported that 20(R)-panaxadiol emerged significant inhibiting effect toward the Du-145, Hela, HepG2, and MCF-7 cells [6]. It is also a potent approach to diversifying the structures of natural products and preparing a variety of derivatives for the search of new leading compounds [7]. PD and panaxatriol type saponins and ophioponins, might exert tremendous cardio-protective effects and anti-inflammatory activities by blocking nuclear factor-kappa B (NF-κB) pathway [8]. Compared with PD, panaxadiol halogen-derivatives showed higher inhibitory activity toward HCT-116, BGC-823,21SW-480 [9]. Consequently, the structural modification of 20(R)-panaxadiol may be valuable in obtaining new chemical derivatives for pharmacological screening and structure-activity relationship studies.

As shown in figure, there are two molecules in the asymmetric unit of the title structure. Each of them contains one classical intramolecular O—H⋯O hydrogen bond. Furthermore, the two crystallographically independent molecules are connected by classical intermolecular N—H⋯O hydrogen bonds. The distances of H(1B)⋯O(2B) and O(2A)⋯H(1A) are 1.809(34) and 1.852(33), respectively. While the distances of H(2A2)⋯O(1B) and H(2B2)⋯O(1A) are 2.261(43) and 2.288(36), respectively. The molecules extends into an infinite two-dimensional network through weak non-classical intermolecular C—H⋯N hydrogen bond. Bond lengths and angles are in the expected ranges [10], [11].

Award Identifier / Grant number: 81473104

Funding statement: X-ray data were collected at School of Chemistry, Chemical Engineering and Environmental Engineering, Weifang University, Weifang, 370700, People’s Republic of China. This work was supported by the National Natural Science Foundation of China (no. 81473104) and Shandong graduate education innovation program (SDYY16132).

References

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Received: 2018-10-17
Accepted: 2018-10-26
Published Online: 2019-02-04
Published in Print: 2019-03-26

©2019 Jia-Zhen Wang et al., published by De Gruyter, Berlin/Boston

This work is licensed under the Creative Commons Attribution 4.0 Public License.

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  8. Crystal structure of methyl 2,7,7-trimethyl-4-(3-methylthiophen-2-yl)-5-oxo-1,4,5,6,7,8-hexahydroquinoline-3-carboxylate, C19H23NO3S
  9. Crystal structure of methyl 2-(4-(pyrazolo[1,5-a]pyrimidin-6-yl)phenyl)acetate, C15H13N3O2
  10. Crystal structure of (1S,3aR,3bR,10aR,10bR,12aR)-8-amino-3a,3b,6,6,10a-pentamethyl-1-((S)-2,6,6-trimethyltetrahydro-2H-pyran-2-yl)-2,3,3a,3b,4,5,5a,6,10,10a,10b,11,12,12a-tetradecahydro-1H-cyclopenta[7,8]phenanthro[2,3-d]thiazol-12-ol – a panaxadiol dervative, C31H50N2O2S
  11. Crystal structure of bis[(((4-fluorophenyl)amino)methyl)triphenylphosphonium] tetrachloridocobaltate(II), C50H44Cl4CoF2N2P2
  12. Crystal structure of 5,4′-dihydroxy-7,3′-dimethoxyflavanone, C17H16O6
  13. Crystal structure of 3-methyl-cyclobis(1-(1,1′-ferrocenylmethyl)-4-butyl-1H-1,2,3-triazole) tetrafluoroborate, C21H25FeN6⋅BF4
  14. Crystal structure of 3-(2-diethylaminoethyl)-2,3-dihydro-2-thioxoquinazolin-4(1H)-one, C14H19N3OS
  15. Crystal structure of 2-(bis(3,5-dimethylphenyl) ((methyldiphenylsilyl)oxy)methyl) pyrrolidine, C34H39NOSi
  16. The crystal structure of 1,4-dinitro-2,3,5,6-tetraacetoxy-piperazine, C12H16N4O12
  17. Crystal structure of rac-3,6-dimethyl-5-(prop-1-en-2-yl)-6-vinyl-1,4,5,6-tetrahydro-2H-indol-2-one, C15H19NO
  18. Crystal structure of (Cu0.51In0.49)tet[Cr1.74In0.26]octSe4 selenospinel, Cu0.51In0.75Cr1.74Se4
  19. Crystal structure of 7-hydroxy-5-methoxy-4,6-dimethylisobenzofuran-1(3H)-one, C11H12O4
  20. Crystal structure of trans-tetrakis(acetonitrile-κN)bis(triphenylphosphine-κP)ruthenium(II) dihexafluorophosphate - dichloroform (1/2), C46H44Cl6F12N4P4Ru
  21. Crystal structure of 2-((4-nitrophenyl)thio)ethan-1-ol, C8H9NO3S
  22. Crystal structure of diaqua-dichlorido-bis(μ3-6,6′-(hydrazine-1,2-diylidenebis(methanylylidene))bis(2-methoxyphenolato)κ6O,N:N′,O′,O′:O′′)trizinc(II) - ethanol (1/2), C36H44Cl2N4O12Zn3
  23. Crystal structure of the co-crystal 2-[(2-carboxyphenyl)disulfanyl]benzoic acid – 3-chlorobenzoic acid (2/1), C35H25ClO10S4
  24. The crystal structure of 4-(3-chloro-4-fluorophenylamino)-7-methoxyquinazolin-6-ol, C15H11ClFN3O2
  25. Crystal structure of ethyl (E)-1-(3-ethoxy-3-oxoprop-1-en-1-yl)-2-(4-nitrophenyl)-2,5-dihydro-1H-benzo[b][1,4]diazepine-3-carboxylate, C23H23N3O6
  26. Crystal structure of (E)-2-(4-cyanophenyl)ethenesulfonyl fluoride, C9H6FNO2S
  27. Crystal structure of bis(4-bromo-2-(((3-chloropropyl)imino)methyl)phenolato-κ2N,O)-oxidovanadium(IV), C20H20Br2Cl2N2O3V
  28. The crystal structure of 1,1,1,3,3,3-hexaphenyldistannoxane – 2,2′-bipyridine (1/1), C46H38N2OSn2
  29. Crystal structure of coordination polymer catena-poly[diaqua-(2,6-dichloropyridine-4-carboxyliato-κ2O,O′)-bis(μ2-2,6-dichloropyridine-4-carboxyliato-κ2O:O′)terbium(III), C18H10Cl6N3O8Tb
  30. The crystal structure of 4-((2-(4,5-dihydro-1,5-diphenyl-1H-pyrazol-3-yl)anthracen-10-yl) methyl)morpholine, C34H31N3O
  31. The crystal structure of bis(N,N-dimethylformamide-κO)-tetrakis(9H-xanthene-9-carboxylic-carboxylate-κ2O:O′)dicopper(II) - acetonitrile (1/2), C66H56Cu2N4O14
  32. Crystal structure of trans-dichlorido-(1,3-dimesityl-1H-imidazol-2(3H)-ylidene)-(5-methyl-3,4-dihydro-2H-pyrrole-κN)palladium(II), C25H31Cl2N3OPd
  33. Crystal structure of 8,8′-di-p-tolyl-8′H-7,8′-biacenaphtho[1,2-d]imidazole, C40H26N4
  34. The crystal structure of 3-amino-(2,4-dioxopent-3-yl)-4,5-dihydro-1,2,4-triazinium nitrate, C8H13N5O5
  35. Crystal structure of 4,4′,5,5′-tetraphenyl-2,2′-di-p-tolyl-2′H-1,2′-biimidazole, C44H34N4
  36. Halogen bonds in the crystal structure of 2-bromo-1,10-phenanthroline – 1,4-diiodotetrafluorobenzene (2/1), C30H14Br2F4I2N4
  37. Crystal structure of tris(1-phenyl-1,2-propanedione-2-oximato-κ2N,O)cobalt(III), C27H24N3O6Co
  38. Crystal structure of chlorido-(6,6′-((1,2-phenylenebis(azanylylidene))bis(methanylylidene))bis(3-methoxyphenolato)-κ4O,N,N′,O′)iron(III), C22H18ClN2FeO4
  39. Crystal structure of bis(μ2-1-(4-chlorophenyl)-3-phenyl-4-thenoyl-1H-pyrazol-5-olato-κ3O,O′:O′)-bis-(1-(4-chlorophenyl)-3-phenyl-4-thenoyl-1H-pyrazol-5-olato-κ2O,O)-bis(ethyl acetate-κO)dicadmium(II), C88H64Cl4N8O12S4Cd2
  40. Crystal structure of catena-poly[dichlorido-(μ2-3-(2-pyridyl)-4-(4-pyridyl)-5-(3-pyridyl)-1,2,4-triazole-κ2N:N′)] copper(II), C17H12N6Cl2Cu
  41. Crystal structure of dichlorido-([2,2′:6′,2′′-terpyridine]-4′-carboxylic acid-κ3N,N′,N′′)copper(II) monohydrate, C16H13Cl2CuN3O3
  42. Crystal structure of triethylammonium(5-carboxypyridine-2-thiolato-κ2N,S)-bis(dimethylsulfoxide-κ1S)-(6-sulfidonicotinato-κ2N,S)ruthenium(II) trihydrate, C22H41N3O9RuS4
  43. The crystal structure of poly[(μ5-2,5-dicarboxy-benzoato-κ4O:O:O′:O′′,O′′′)silver(I)], C9H5AgO6
  44. Crystal structure of (E)-1-(thiophen-2-yl)-N-(5-((triphenylstannyl)thio)-1,3,4-thiadiazol-2-yl)methanimine, C25H19N3S3Sn
  45. Crystal structure of diaqua-bis(3,5-dichloroisonicotinato-κ1O)-bis(1,3-di(pyridin-4-yl)propane-κ1N)cobalt(II), C38H36Cl4N6O6Co
  46. Crystal structure of dodecaaqua-bis(μ2-4,4′-bipyridine-κ2N:N′)-bis(4,4′-((5-carboxylato-1,3-phenylene)bis(oxy))dibenzoato-κ1O)tricopper(II) - water (1/4), C62H70Cu3N4O32
  47. Crystal structure of bis(5-methoxy-2-(((2-oxidoethyl)imino)methyl)phenolate-κ3O,N,O′)manganes(IV), C20H22N2O6Mn
  48. Crystal structure of tetramethylammonium (2-(3-ethoxy-2-oxidobenzylidene)-1-(2-hydroxybenzoyl)hydrazin-1-ido-κ3N,N′,O)cobalt(III), C36H40N5O8Co
  49. Crystal structure of 6-cyclohexyl-6,7-dihydrodibenzo[c,f][1,5]azabismocin-12(5H)-yl nitrate, C20H23O3N2Bi
  50. Crystal structure of (E)-N-((2S,3S,4R,10R,13S, 17S)-17-(1-(dimethylamino) ethyl)-2,4-dihydroxy-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthren-3-yl)-2-methylbut-2-enamide, C24H48N2O3
  51. Crystal structure of (E)-2-((4-chlorophenyl)(phenyl)methylene)hydrazine-1-carbothioamide, C14H12ClN3S
  52. Crystal structure of 1-benzyl-3-cyano-6-phenyl-1,2-dihydropyridine, C19H16N2
  53. Isolation and crystal structure of 4-((2-(methoxycarbonyl)phenyl)amino)-2-methyl-4-oxobutanoic acid from Delphinium Grandiflorum, C13H15N1O5
  54. Crystal structure of tetraqua-bis(4-(hydroxymethyl)benzoato-κO)nickel(II), C16H22O10Ni
  55. Crystal structure of ajacisine D monohydrate, C30H44N2O9
  56. The crystal structure of (E)-4-(1-(2-aminophenylimino)ethyl)benzene-1,3-diol, C14H14N2O2
  57. Crystal structure of poly[(μ4-(4H-1,2,4-triazol-4-yl)phenyl)acetato-κ4N,N′,O,O′)(formiato-κ1O)cobalt(II)], C11H9CoN3O4
  58. The crystal structure of bis tetrabutylammonium bis(μ3-2,2,2-tri(hydroxymethyl)ethyl-4-((3-methoxy-3-oxopropyl)amino)-4-oxobutanoato)-(μ6-oxido)-hexakis(μ2-oxido)-hexaoxido-hexavanadium(V), C58H112N4O29V6
  59. Crystal structure of (N-benzylpropane-1,3-diamine-κ2N, N′)(2,2′-bipyridine-κ2N,N′)platinum(II) chloride, C20H24Cl2N4Pt
  60. Crystal structure of 5-(5-(4-chlorophenyl)-1-phenyl-1H-pyrazol-3-yl)-N-phenyl-2-amine, C23H16ClN5O
  61. Crystal structure of poly-[(μ2(carboxylatomethyl)((3-nitrophenyl)sulfonyl)amido-κ3N: O:O′)(μ2-4,4′-bipyridine-κ2N:N′)copper(II)], C18H14CuN4O6S
  62. Crystal structure of poly-[(μ2-(carboxylatomethyl)((3-nitrophenyl)sulfonyl)amido-κ3N:O:O′)(μ2-4,4′-bipyridine-κ2N:N′) nickel(II)], C18H14NiN4O6S
  63. Crystal structure of N-((3R,10S,13S,17S)-17-((S)-1-(dimethylamino)ethyl)-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthren-3-yl)-N-methylbenzamide, C31H48N2O
  64. The crystal structure of dichloroido(1,3-bis(2,6-dimethyl-phenyl)-1H-3l4-imidazol-2-yl)(2-methyl-4,5-dihydrooxazol-κN)palladium(IV)-water (1/1), C23H29Cl2N3O2Pd
  65. Crystal structure of catena-poly[dibromido-{μ2-1,5-dimethyl-2-phenyl-4-((pyridin-4-ylmethylene)amino)-1,2-dihydro-3H-pyrazol-3-one-κ2N:O}zinc(II)], C34H32Br4N8O2Zn2
  66. Crystal structure of diaqua-dichlorido-bis(μ2-2-(((1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)imino)methyl)phenolato-κ4O:O,N,O′)dicobalt(II), C36H36Cl2N6O6Co2
  67. Crystal structure of catena-poly[diaqua-(μ2-1,2-bis(4-pyridinyl)ethyane-κ2N:N′)-(μ2–pyridazine-4,5-dicarboxylato-κ2O:O′)]dizinc(II) dihydrate, C12H12ZnN3O6
  68. The crystal structure of 2-(4-chloro-2,6-dinitrophenyl)-1-(4-chloro)diazene oxide, C12H6Cl2N4O5
  69. Crystal structure of 2-isopropylthioxanthone, C16H14OS
  70. Crystal structure of methyl 2-(4-(3-(1-methyl-1H-pyrazol-4-yl)pyrazolo[1,5-a]pyrimidin-6-yl)phenyl)acetate, C19H17N5O2
  71. Crystal structure of 4,4-dimethyl-2-(trifluoromethyl)-4,5-dihydro-1H-imidazole, C6H9F3N2
  72. Crystal structure of N-methylanilinium 5,7-dihydroxy-4-oxo-2-phenyl-4H-chromene-8-sulfonate monohydrate, C22H21NO8S
  73. Crystal structure of methyl 4-acetoxybenzoate, C10H10O4
  74. Crystal structure of catena-poly[(bis(μ-1,1′-[(5-methoxy-2,4,6-trimethyl-1,3-phenylene)bis(methylene)]bis(1H-1,2,4-triazole)-κ2N:N′)-bis(isothiocyanato-κN)manganese(II)], C34H40MnN14O2S2
  75. Crystal structure of N-(2-methylphenyl)(propan-2-yloxy)carbothioamide, C11H15NOS
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