Startseite Crystal structure of (3E,5E)-3,5-bis(4-cyanobenzylidene)-1-((4-fluorophenyl)sulfonyl)piperidin-4-one, C27H18FN3O3S
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Crystal structure of (3E,5E)-3,5-bis(4-cyanobenzylidene)-1-((4-fluorophenyl)sulfonyl)piperidin-4-one, C27H18FN3O3S

  • Xiao-Yan Li EMAIL logo , Qing-Guo Meng und Gui-Ge Hou
Veröffentlicht/Copyright: 19. März 2019

Abstract

C27H18FN3O3S, monoclinic, P21/c (no. 14), a = 8.091(6) Å, b = 42.84(3) Å, c = 7.096(6) Å, β = 107.806(10)°, V = 2342(3) Å3, Z = 4, Rgt(F) = 0.0616, wRref(F2) = 0.1321, T = 173(2) K.

CCDC no.: 1894601

The molecular structure is shown in the figure. Table 1 contains crystallographic data and Table 2 contains the list of the atoms including atomic coordinates and displacement parameters.

Table 1:

Data collection and handling.

Crystal:Yellow block
Size:0.15 × 0.07 × 0.05 mm
Wavelength:Mo Kα radiation (0.71073 Å)
μ:0.18 mm−1
Diffractometer, scan mode:Bruker SMART, φ and ω-scans
θmax, completeness:25.5°, >99%
N(hkl)measured, N(hkl)unique, Rint:12141, 4354, 0.085
Criterion for Iobs, N(hkl)gt:Iobs > 2 σ(Iobs), 2639
N(param)refined:316
Programs:Bruker programs [1], SHELX [2], [3]
Table 2:

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

AtomxyzUiso*/Ueq
C10.4144(4)0.05423(7)0.8923(5)0.0383(8)
C20.3696(5)0.02551(7)0.7924(5)0.0423(8)
H20.25320.01830.75700.051*
C30.4956(5)0.00785(8)0.7457(5)0.0473(9)
H30.4645−0.01120.67470.057*
C40.6666(5)0.01789(8)0.8026(5)0.0447(9)
C50.7138(5)0.04582(7)0.9054(5)0.0452(9)
H50.83150.05250.94610.054*
C60.5876(4)0.06378(7)0.9476(5)0.0412(8)
H60.61940.08301.01550.049*
C70.2767(4)0.07219(7)0.9406(5)0.0414(8)
H70.19320.06020.97820.050*
C80.2542(4)0.10341(7)0.9382(5)0.0375(8)
C90.0973(4)0.11562(7)0.9836(5)0.0391(8)
C100.0547(4)0.14970(7)0.9537(4)0.0371(7)
C110.1839(4)0.17053(7)0.8963(5)0.0412(8)
H11A0.12230.18890.82340.049*
H11B0.27210.17811.01770.049*
C120.3705(4)0.12645(7)0.8759(5)0.0439(8)
H12A0.46300.13370.99460.053*
H12B0.42670.11580.78770.053*
C13−0.0974(4)0.15965(7)0.9680(5)0.0426(8)
H13−0.16680.14441.00480.051*
C14−0.1714(4)0.19136(8)0.9338(5)0.0420(8)
C15−0.0730(5)0.21821(8)1.0024(5)0.0469(9)
H150.04580.21631.07800.056*
C16−0.1482(5)0.24764(8)0.9607(5)0.0488(9)
H16−0.08100.26581.00940.059*
C17−0.3205(5)0.25055(8)0.8484(5)0.0456(9)
C18−0.4219(5)0.22393(9)0.7796(6)0.0522(9)
H18−0.54090.22580.70470.063*
C19−0.3455(5)0.19479(8)0.8229(5)0.0499(9)
H19−0.41340.17670.77590.060*
C20−0.4000(5)0.28102(9)0.8010(5)0.0516(9)
C210.8016(5)−0.00053(8)0.7561(6)0.0539(9)
C22−0.0040(4)0.12678(7)0.4859(5)0.0359(8)
C230.0195(4)0.09466(7)0.4719(5)0.0415(8)
H230.12980.08650.47590.050*
C24−0.1209(5)0.07466(8)0.4520(5)0.0458(9)
H24−0.10780.05270.44440.055*
C25−0.2787(5)0.08749(8)0.4438(5)0.0451(9)
C26−0.3065(4)0.11904(8)0.4516(5)0.0467(9)
H26−0.41830.12700.44260.056*
C27−0.1664(4)0.13910(7)0.4732(5)0.0397(8)
H27−0.18150.16100.47910.048*
F1−0.4166(3)0.06807(5)0.4238(3)0.0680(6)
N10.2715(3)0.15380(6)0.7715(4)0.0397(6)
N20.9092(5)−0.01436(8)0.7186(6)0.0778(11)
N3−0.4593(4)0.30522(8)0.7653(5)0.0687(10)
O10.0005(3)0.09806(5)1.0367(4)0.0546(7)
O20.2994(3)0.13803(5)0.4493(4)0.0555(7)
O30.1126(3)0.18305(5)0.4737(4)0.0522(6)
S10.17615(10)0.15208(2)0.53075(13)0.0405(2)

Source of material

4-Piperidone hydrochloride hydrate (0.77 g, 5.0 mmol) and 4-cyanobenzaldehyde (1.31 mol, 10.0 mmol) were dissolved in 25 mL of acetic acid. Dry HCL gas was passed through this mixture for 25 min. After stirring at room temperature for about 36 h, the mixture was added into 100 mL acetone. The precipitate was filtered and subsequently washed by acetone to provide a yellow intermediate. Then, the yellow intermediate and 4-fluorophenylsulfonylfluoride (0.89 g, 5.0 mol) were dissolved in 50 mL of dichloromethane. Potassium carbonate (2.76 g, 0.02 mol) was added and the mixture was stirred for 12 h at room temperature. The precipitate was collected, washed with water and recrystallized from dichloromethane/methanol (2:1, v/v) to get light yellow crystals of the title compound.

Experimental details

All H atoms were placed in idealized positions and treated as riding on their parent atoms, with d(C—H) = 0.99 Å (methylene), Uiso(H) = 1.2Ueq(C) and d(C—H) = 0.95 Å (aromatic), Uiso(H) = 1.2Ueq(C).

Discussion

Curcumin (1,7-bis(4-hydroxy-3-methoxyphenyl)1,6-hepta-dien-3,5-dion) is a yellow pigment extracted from the rhizome of turmeric, which has anti-inflammatory, anti-tumor, anti-oxidation and other activities. However, the clinical application of curcumin is limited due to its low anticancer activity and poor bioavailability [4]. In order to improve these defects, a new class of curcumin analogs (3E,5E)-3,5-bis(arylidene)-4-piperidones (BAP) have been reported as better antitumor agents [5], [6], [7], [8], [9]. The pharmacophore of BAP is 1,5-diaryl-3-oxo-1,4-pentadienyl, which contains two α,β-unsaturated keto groups and has a greater predilection or sequential interaction for bio-thiols resulting in a greater activity to tumors rather than with normal cells. For example, 3,5-bis(2-fluorobenzylidene)-4-piperidone (EF24) is a more potent antitumor drug than curcumin that disrupts the microtubule cytoskeleton and inhibits HIF-1 [10].

Our interests lie in incorporation of strong electron-withdrawing substituent groups on both sides of BAP. In addition, we expect that inflammatory activity [11], [12], [13]. In previous study, crystal structure and bioactivity of 4-((E)-((E)-5-(2-fluorobenzylidene)-1-((4-fluorophenyl)sulfonyl)-4-oxopiperidin-3-ylidene)methyl)benzonitrile (BAP-1) was reported [14], [7], which is a dissymmetric compound. In this study, we report herein the crystal structure of (3E,5E)-3,5-bis(4-cyanobenzylidene)-1-((4-fluorophenyl)sulfonyl)piperidin-4-one.

There is one molecule in the asymmetric unit of the title crystal structure (cf. the figure). Bond lengths and angles are all in the expected ranges. Single-crystal structure analysis reveals that two 4-cyano phenyl groups on both sides of 3,5-bis(arylidene)-4-piperidone are symmetric compared with central piperidin-4-one. The piperidin-4-one moiety shows the typical folding. The E stereochemistry of olefinic double bonds is adopted [15]. And the dihedral angles between two 4-cyano phenyl groups is 37°. The 2-fluorophenyl group is almost coplanar with 1,5-diaryl-3-oxo-1,4-pentadienyl moiety, which can be proved by the dihedral angles (16.36(4)°). On the whole, the title molecule looks like an “organic clip” [16]. The heteroatoms (F, N, O, S) can act as hydrogen bonding acceptors for biological macromolecules with the aim of creating more potent cytostatica [17].

Award Identifier / Grant number: 21402010

Funding statement: This work was supported by the National Natural Science Foundation of China (no. 21402010).

References

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Received: 2019-01-30
Accepted: 2019-02-25
Published Online: 2019-03-19
Published in Print: 2019-06-26

© 2019 Xiao-Yan Li et al., published by De Gruyter, Berlin/Boston

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

Artikel in diesem Heft

  1. Frontmatter
  2. Crystal structure of (E)-2-(1-((2-aminophenyl)imino)ethyl)-5-fluorophenol, C14H13FN2O
  3. Crystal structure of (E)-2-(1-((2-aminophenyl)imino)ethyl)-4,6-dichlorophenol, C14H12Cl2N2O
  4. The crystal structure of (E)-1-(4-methoxyphenyl)-3-(2-nitrophenyl)triaz-1-ene C8H8N2O4
  5. Crystal structure of (E)-2-(((6-bromopyridin-2-yl)methylene)amino)-3′,6′-bis(ethylamino)-2′,7′-dimethylspiro[isoindoline-1,9′-xanthen]-3-one—methanol (1:1), C32H30N5O2Br ⋅ CH4O
  6. Crystal structure of 2,4-pentanedione bis(2,4-dinitrophenylhydrazone), C17H16N8O8
  7. Crystal structure of sodium morpholine-4-carbodithioate, (C5H12NNaO3S2)
  8. Crystal structure of 1,1′-(hexane-1,6-diyl)bis(3-ethyl-1H-imidazol-3-ium) bis(hexafluorido phosphate), C16H28F12N4P2
  9. Crystal structure of 5-(4-chlorophenyl)-3-(4-fluorophenyl)-1-phenyl-4,5-dihydro-1H-pyrazole, C21H16ClFN2
  10. Crystal structure of catena-poly[diaqua-bis(3-carboxy-5-methoxybenzoato-κO)-(1,2-bis(imidazol-1-yl)ethane-κ2N:N′)cobalt(II)], C26H28CoN4O12, [Co(C9H6O5)2(H2O)2(C8H10N4)]
  11. The crystal structure of 3-cyclohexyl-1,5-dioxaspiro[5.5]undecane-2,4-dione, C15H22O4
  12. Crystal structure of (2,4-dimethoxybenzyl)triphenylphosphonium trifluoroacetate — trifluoroacetic acid (1/1), C31H27F6O6P
  13. Crystal structure of 4-tert-butyl-1-(2,6-dimethylphenyl)-1H-1,2,3-triazole, C14H19N3
  14. Crystal structure of 1,1′-methylenebis(4-tert-butylpyridinium) tetrachloridocobaltate(II) – dichloromethane (1:1), C20H30Cl6CoN2
  15. Crystal structure of (4,4′-(ethane-1,2-diylbis((nitrilo)(2-furylmethylylidene)))bis(3-methyl-1-phenyl-1H-pyrazol-5-olato-κ4N,N′,O,O′))-nickel(II)), C32H26N6NiO4
  16. Synthesis and crystal structure of bis{((E)-((4-((E)-1-(benzyloxyimino)ethyl)phenyl)imino)methyl)-2-phenolato-κ2N,O}copper(II), C44H38CuN4O4
  17. Crystal structure of catena-poly[diaqua-bis(3,5-dichloropyridine-4-carboxylato-κ1O)-bis(μ2-4,4′-bipyridine-κ2N:N′)cobalt(II)], C22H16Cl4CoN4O6
  18. The crystal structure of 2-(4-chloro-2,6-dinitrophenyl)-1-(4-chloro-3,5-dinitrophenyl)diazene 1-oxide, C12H4Cl2N6O9
  19. The crystal structure of 3-(1H-benzo[d]imidazol-2-yl)-7-chloro-1-cyclopropyl-6-fluoro-1,4-dihydroquinolin — dimethylsulfoxide (1/1), C21H19ClFN3O2S
  20. The crystal structure of dichlorido-bis(1-butyl-1H-imidazole-κN)zinc(II), C14H24Cl2ZnN4
  21. (Z)-N-tert-butyl-1-(2-(3,5-dichlorobenzamido)phenyl) methanimine oxide, C18H18Cl2N2O2
  22. Crystal structure of diaqua-bis(3-carboxy-5-bromoisophthalato-κO)-bis(1-(3-(1H-benzo[d]imidazol-1-yl)propyl)-1H-benzo[d]imidazol-3-ium-κN)nickel(II) bis(3-carboxy-5-bromoisophthalate), C66H54Br4N8NiO18
  23. Crystal structure of poly[aqua(μ2-5-methoxyisophthalato-κ2O,O′:O′′)-(1,2-bis(imidazol-1′-yl)ethane-κ2N:N′)cobalt(II), C34H36Co2N8O12
  24. Crystal structure of poly[diaqua-bis(μ2-1-(4-(1H-imidazol-1-yl)benzyl)-1H-1,2,4-triazole-κ2N:N′)manganese(II)] terephthalate tetrahydrate, MnC32H38N10O10
  25. Crystal structure of the fluorescent fipronil derivative 5,5′-(methylenebis(azanediyl))bis(1-(2,6-dichloro-4-(trifluoromethyl)phenyl)-4-((trifluoromethyl)sulfinyl)-1H-pyrazole-3-carbonitrile), C25H6N8O2Cl4F12S2
  26. Crystal structure of the phosphorescent complex diethyldithiophosphonato-κ2S,S′-bis(2-phenylpyridinato-κ2C,N)iridium(III), C26H26N2O2PS2Ir
  27. The crystal structure of 4,10-diethoxy-6H,12H-6,12-epoxydibenzo[b,f][1,5]dioxocine, C18H18O5
  28. Crystal structure of dichlorido-bis(N-benzyl-2-(quinolin-8-yloxy)acetamide-κ2N,O)copper(II) — ethyl acetate (1/1), C38H36N4O6Cl2Cu
  29. Synthesis and crystal structure of bis{4-methyl-2-((E)-((4-((E)-1-(benzyloxyimino)ethyl)phenyl)imino)methyl)phenolato-κ3N,O,O}copper(II), C92H84Cu2N8O8
  30. The crystal structure of 1,3,5-trinitro-4,6-diazidobenzene, C6HN9O6
  31. Crystal structure 1-cinnamyl-2-((Z)-styryl)-1H-benzo[d]imidazole — methanol (1/1), C24H20N2 ⋅ CH4O
  32. The crystal structure of poly[m2-aqua-tetraaqua-bis(m9-4-formylbenzene-1,3-disulfonato)tetrasodium(I) hydrate, C14H18O19S4Na4
  33. Crystal structure of 2-((2,8-bis(trifluoromethyl)quinolin-4-yl)(hydroxy)methyl)piperidin-1-ium trifluoroacetate, [C17H17F6N2O][C2F3O2]
  34. The crystal structure of bis(ferrocenecarboxylato-κ2O,O′)bis[4-(dimethylamino)pyridine-κN]copper(II) — acetonitrile(1/2), C40H44CuO4Fe2N6
  35. Crystal structure of poly[di-μ2-aqua)-diaqua-bis(μ6-4,4′,4′′-(benzene-1,3,5-triyltris(oxy))tribenzoato-κ6O1:O2:O3:O3:O5:O6)tricadmium(II)] dihydrate, C54H42Cd3O24
  36. The crystal structure of dichlorido(1,3-bis(2,6-diisopropyl-phenyl)-1H-3λ4-imidazol-2-yl)(3-phenyl-pyridine-κN)palladium(IV), C38H45N3Cl2Pd
  37. The crystal structure of 2-chloro-4-(prop-2-yn-1-yloxy)-6-phenyl-1,3,5-triazine, C12H8ClN3O
  38. The crystal structure of 2,6-di-tert-butyl-4-(phenyl(phenylsulfonyl)methyl)phenol, C27H32O3S
  39. Crystal structure of bis{μ2-bis{(((((1-methoxyimino)ethyl)phenyl)imino)methyl)-2-phenolato-κ3N,O:O}copper(II)}, C68H68Cu2N8O8
  40. Crystal structure of catena-poly[tetraaqua-bis(μ2-2-(4-carboxylatophenoxy)benzoato-κ2O:O′)-pentakis(pyridine-κ1N)dinickel(II)], C53H47N5Ni2O13
  41. Synthesis and crystal structure of 1-(2,6-dichloro-4-trifluoromethyl-phenyl)-5-(3-methoxy-benzylamino)-4-trifluoromethanesulfinyl-1H-pyrazole-3-carbonitrile, C20H12N4Cl2F6O2S
  42. Redetermination of the crystal structure of bis(μ2-di-ethyldithiocarbamato-κ3S,S′:S3S:S: S′)-hexacarbonyl-di-rhenium(I), C16H20N2O6Re2S4
  43. The crystal structure of (E)-N′-((2-hydroxynaphthalen-1-yl)methylene)-2-phenylacetohydrazide, C19H16O2N2
  44. Crystal structure of 6-hydroxy-4,8,11b-trimethyltetradecayhdro-8,11-epoxy-6a,9-methanocyclohepta[a]naphthalene-4-carboxylic acid – methanol (1/1), C20H30O4
  45. The crystal structure of aqua-bis(3-acetyl-2-oxo-2H-chromen-4-olato-κ2O,O′)zinc(II) monohydrate, C22H18O10Zn
  46. Crystal structure of poly[bis(μ2-4-bromoisophthalate-κ2O:O′)-tris(μ2-1-(3-((1H-1,2,4-triazol-1-yl)methyl)benzyl)-1H-1,2,4-triazole-κ2N:N′)dicobalt(II)] monohydrate, C26H23CoN9O5Br
  47. A cyclic I102− anion in the layered crystal structure of theophyllinium pentaiodide, C7H9I5N4O2
  48. Crystal structure of catena-poly[diaqua-bis(μ2-4-((4-(pyridin-2-ylmethoxy)phenyl)diazenyl)benzoato-κ3O,O′:N)cadmium(III)], Cd(C19H14O3N3)2(H2O)
  49. Crystal structure of catena-poly[(μ2-4,4′-bipyridyl-κN,N′)-bis(O,O′-dimethyldithiophosphato-κS)-zinc(II)], {C14H20N2O4P2S4Zn}n
  50. Crystal structure of 3-amino-2-hydroxy-6-methoxybenzamide hydrate, C16H22N4O7
  51. Crystal structure of hemikis(cyclohexane-1,4-diammonium) (pyridine-2-carboxylate), [C6H16N2]0.5[C6H4NO2]
  52. Crystal structure of 2-chloro-4-(prop-2-yn-1-yloxy)-6-(thiophen-2-yl)-1,3,5-triazine, C10H6ClN3OS
  53. The crystal structure of 3-butyl-1-methyl-1H-imidazol-3-ium catena-poly[tris(μ2-bromido-κ2Br:Br)lead(II)], C8H15Br3N2Pb
  54. Crystal structure of 3-(5-amino-1H-1,2,4-triazol-3-yl)-1-(piperidin-1-yl)propan-1-one, C10H17N5O
  55. Crystal structure of aqua-2,2′,2′′-(((nitrilo-κN-tris(ethane-2,1-diyl))tris(azanylylidene-κ3N′,N′′,N′′′))tris(methanylylidene))tris(4-chlorophenolato-κ3O,O′,O′′)neodymium(III), C27H26Cl3N4NdO4
  56. Crystal structure of dichlorido-(μ2-2,2′-(diazene-1,2-diyl)bis(benzen-1-ido)-κ2C:C′)dimercury(II), C12H8Cl2Hg2N2
  57. Crystal structure of (3E,5E)-3,5-bis(4-cyanobenzylidene)-1-((4-fluorophenyl)sulfonyl)piperidin-4-one, C27H18FN3O3S
  58. Crystal structure of dichlorido(pyridine-κN)(2,4,6-tri-2-pyridyl-1,3,5-triazine-κ3N2,N1,N6)nickel(II), C23H17Cl2N7Ni
  59. Redetermination of the crystal structure of tetrakis(4-chlorobenzyl)tin(IV), C28H24Cl4Sn
  60. The crystal structure of 2,6-bis(pyridin-1-ium-3-ylmethyl)hexahydro-4,8-ethenopyrrolo-[3,4-f] isoindole-1,3,5,7-tetrone tetrachloridocuprate(II) monohydrate, C24H24Cl4CuN4O5
  61. Crystal structure of cyclo-[octaaqua-tetrakis(μ2-5,5′-(1H-imidazole-4,5-diyl)bis(tetrazol-2-ido)-κ4N,N′,N′′,N′′′)tetramagnesium(II)], C20H24N40O8Mg4
  62. The crystal structure of a matrine derivative, 13-(4-Cl-pyrrole)-matrine, C18H26ClN4O
  63. Crystal structure of (dibenzyl sulphoxide-κO)bis(2-chlorobenzyl-κC1)dichloridotin(IV), C28H26Cl4OSSn
  64. Crystal structure of catena-poly[(μ2-azido-κ2N:N)(μ2-4-cyanobenzoato-κ2O:O′)-(μ2-methanol-κ2O:O)copper(II)], C9H8CuN4O3
  65. Crystal structure of 1,1′-dibenzyl-3,3′-dicyano-1,1′,4,4′-tetrahydro-4,4′-bipyridine, C26H22N4
  66. Crystal structure of (2-bromobenzyl)((1-bromonaphthalen-2-yl)methyl)sulfane, C18H14Br2S
  67. Crystal structure of 2-(4-ammoniocyclohexyl)-3-(pyridin-2-yl)imidazo[1,5-a]pyridin-2-ium 2-[(2-carboxylatophenyl)disulfanyl]benzoate dihydrate, [C18H22N4][C14H8O4S2] ⋅ 2H2O
  68. Crystal structure of (E)-N-((3R,5S,10S, 13S,14S,17S)-17-((S)-1-(dimethylamino)ethyl)-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthren-3-yl)-2-methylbut-2-enamide – water – methanol (1/1/1), C29H54N2O3
  69. Crystal structure of methyl 2-(4-(3-(2,4-difluorophenyl)pyrazolo[1,5-a]pyrimidin-6-yl)phenyl)acetate, C21H15F2N3O2
  70. Crystal structure of poly[triaqua-(μ4-benzene-1,3,5-tricarboxylato-κ5O1,O2:O3:O4:O5)-(μ2-5-(3-pyridyl)tetrazolato-κ2N1:N3)dizinc(II)], C15H13N5O9Zn2
  71. Crystal structure of N-(3-methylphenyl)(propan-2-yloxy)carbothioamide, C11H15NOS
  72. Crystal structure of poly[(μ2-1,3-bis(imidazol-1-ylmethyl)benzene-κ2N:N′)(nitrato-κ1O)cadmium(II)] — water (2/1), C28H32CdN10O7
  73. Crystal structure of 4-phenyl-2,4-dihydro-3H-1,2,4-triazole-3-thione, C8H7N3S
  74. Crystal structure of benzyltrichloridobis(1H-pyrazole-κ2N)tin(IV), C13H15Cl3N4Sn
  75. Crystal structure of chlorido-4-fluorobenzyl-bis(2-methylquinolin-8-olato-κ2N,O)tin(IV), C27H22ClFN2O2Sn
  76. Crystal structure of tetrakis(O,O′-diisopropyldithiophosphato-κ2S,S′)-(μ2-1,2-bis(4-pyridylmethylene)hydrazine-κ2N:N′)zinc(II), C36H66N4O8P4S8Zn2
  77. Crystal structure of tetrabutylammonium 4,4-oxydibenzoate – boric acid – water (1/2/6) C46H98B2N2O17
  78. Redetermination of the crystal structure of catena-poly[[tribenzyltin(IV)]-(μ2-pyridine-4-carboxylato-κ2N:O)], C27H25NO2Sn
  79. The synthysis and crystal structure of cyclohexyl 5-amino-1-(2,6-dichloro-4-(trifluoromethyl)phenyl)-4-((trifluoromethyl)sulfinyl)-1H-pyrazole-3-carboxylate, C18H15N3Cl2F6O3S
  80. The crystal structure of 5,7-bis(2-hydroxyethoxy)-2-phenyl-4H-chromen-4-one, C19H18O6
  81. Synthesis and crystal structure of (±)-Ethyl 5′-(difluoromethyl)-2-oxo-4′,5′-dihydrospiro[indoline-3,3′-pyrazole]-4′-carboxylate, C14H13F2N3O3
Heruntergeladen am 2.10.2025 von https://www.degruyterbrill.com/document/doi/10.1515/ncrs-2019-0097/html
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