Information card for entry 7159017

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: 8.4578 ± 0.0008 Å
• b: 9.519 ± 0.0009 Å
• c: 19.2209 ± 0.0018 Å
• α: 90°
• β: 90°
• γ: 90°
• Cell volume: 1547.5 ± 0.3 ų
• Cell temperature: 100 ± 1 K
• Ambient diffraction temperature: 100 ± 1 K
• Number of distinct elements: 4
• Space group number: 19
• Hermann-Mauguin space group symbol: P 21 21 21
• Hall space group symbol: P 2ac 2ab
• Residual factor for all reflections: 0.0317
• Residual factor for significantly intense reflections: 0.0316
• Weighted residual factors for significantly intense reflections: 0.0817
• Weighted residual factors for all reflections included in the refinement: 0.0818
• Goodness-of-fit parameter for all reflections included in the refinement: 1.074
• Diffraction radiation wavelength: 1.34138 Å
• Diffraction radiation type: GaKα
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No