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organic compounds
The crystal structure of chasmanthinine, C36H49NO9, a C19 norditerpenoid alkaloid which has been isolated from the roots of Aconitum chasmanthum Stapf ex Holmes, contains independent molecules separated by normal van der Waals distances. The mean bond distances are: N-Csp3 1.468 (11), Csp3-Csp3 1.54 (2), Csp2-Csp2 1.471 (2), O-Csp3 1.428 (18), O-Csp2 1.338 (2), and C=O 1.205 (4) Å. The fused ring system contains one boat, one half-chair, two chair and two envelope conformations.
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