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The crystal structure of chasmaconitine methanol solvate, C34H47NO9.0.5CH4O, a C19 diterpenoid alkaloid isolated from the roots of Aconitum chasmanthum Stapf ex Holmes of Pakistani origin contains discrete molecules separated by normal van der Waals distances. The fused ring system contains one boat, one half-chair, two envelope and two chair conformations. The molecular dimensions are normal with no interactions between the alkaloid and the disordered solvate molecules; the mean bond distances are Csp3-N 1.467 (14), Csp3-Csp3 1.54 (2), Csp3-O 1.42 (2), Csp2-O 1.337 (5) and C=O 1.197 (5) Å.

Supporting information

cif

Crystallographic Information File (CIF)
Contains datablock Chasmaconitine

fcf

Structure factor file (CIF format)
Contains datablock chasmaconitine

CCDC reference: 129529

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