Information card for entry 7159020

Structure parameters

• Formula: C19 H21 N O4
• Calculated formula: C19 H21 N O4
• Title of publication: Cytotoxic alkaloids from the twigs and leaves of <i>Cephalotaxus sinensis</i>.
• Authors of publication: Zhang, Fuxin; Yang, Tao; Yang, Kailing; Zhou, Ruixi; Zhang, Yu; Chen, Wenwen; Liu, Zhetong; Zhan, Guanqun; Guo, Zengjun
• Journal of publication: Organic & biomolecular chemistry
• Year of publication: 2022
• Journal volume: 21
• Journal issue: 1
• Pages of publication: 169 - 178
• a: 6.6669 ± 0.0006 Å
• b: 21.971 ± 0.002 Å
• c: 11.9519 ± 0.0012 Å
• α: 90°
• β: 103.559 ± 0.004°
• γ: 90°
• Cell volume: 1701.9 ± 0.3 ų
• Cell temperature: 200 ± 2 K
• Ambient diffraction temperature: 200 ± 2 K
• Number of distinct elements: 4
• Space group number: 14
• Hermann-Mauguin space group symbol: P 1 21/c 1
• Hall space group symbol: -P 2ybc
• Residual factor for all reflections: 0.0542
• Residual factor for significantly intense reflections: 0.0431
• Weighted residual factors for significantly intense reflections: 0.1152
• Weighted residual factors for all reflections included in the refinement: 0.1217
• Goodness-of-fit parameter for all reflections included in the refinement: 1.04
• Diffraction radiation wavelength: 1.34139 Å
• Diffraction radiation type: GaKα
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No