Information card for entry 5000252

Structure parameters

• Chemical name: Keramaphidin B
• Formula: C26 H40 N2
• Calculated formula: C26 H40 N2
• Title of publication: Keramaphidin B, a novel pentacyclic alkaloid from a marine sponge Amphimedon sp.: A plausible biogenetic precursor of manzamine alkaloids
• Authors of publication: Kobayashi, Jun'ichi; Tsuda, Masashi; Kawasaki, Naoko; Matsumoto, Keita; Adachi, Takashi
• Journal of publication: Tetrahedron Letters
• Year of publication: 1994
• Journal volume: 35
• Journal issue: 25
• Pages of publication: 4383 - 4386
• a: 16.168 ± 0.004 Å
• b: 21.497 ± 0.005 Å
• c: 12.631 ± 0.004 Å
• α: 90°
• β: 90°
• γ: 90°
• Cell volume: 4390.08 ų
• Number of distinct elements: 3
• Space group number: 61
• Hermann-Mauguin space group symbol: P b c a
• Hall space group symbol: -P 2ac 2ab
• Residual factor for significantly intense reflections: 0.052
• Weighted residual factors for significantly intense reflections: 0.052
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No