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Structure analysis by 13C nmr spectroscopy of criophylline, a new dimeric indole alkaloid

✍ Scribed by A. Cavé; J. Bruneton; A. Ahond; A.-M. Bui; H.-P. Husson; C. Kan; G. Lukacs; P. Potier

Publisher: Elsevier Science
Year: 1973
Tongue: French
Weight: 220 KB
Volume: 14
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(01)87393-7

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✦ Synopsis

STRUCTURE ANALYSIS BY 13C NMR SPECTROSCOPY OF CRIOPHYLLINE, A NEW DIMERIC INDOLE ALKALOID(')*

A. Cave, J. Bruneton

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## Abstract The ^13^C shifts of 16α‐ and 16β‐substituted derivatives of quebrachamine, 14,15‐dehydroquebrachamine, cleavamine, 15,20α‐dihydrocleavamine and 15,20β‐dihydrocleavamine are determined and correlated with possible conformations of these tetracycles. The method of analysis of the C(16) co