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Report | Regular issue | Vol 20, No. 10, 1983, pp.2001-2009
Published online, 1st January, 1970
DOI: 10.3987/R-1983-10-2001
Oxidation of Coronaridine

Kamesh Rastogi, Randhir S. Kapil, and Satya P. Popli

*Central Drug Research Institute, Lucknow 226001, India


A variety of oxidising reagents were used for the oxidation of coronaridine. In this study four new alkaloids 16-hydroxymethylene-3-oxoibogamine (7), 2,3,7-(2H,7H)-trioxo-2,7-(2H,7H)-secocoronaridine (10), bisindole alkaloids 5-(coronaridin-10-yl)-5-hydroxy-6-oxocoronaridine (11) and 5-(6-oxocoronaridin-10-yl)-6-oxocoronaridine (12) were obtained and their structures elucidated. Additionally alkaloids 5-hydroxy-6-oxocoronaridine (3), 5-oxocoronaridine (6) and 6-oxocoronaridine (13) are being reported for the first time semisynthetically.