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Mexicanolide limonoids from the Madagascan Meliaceae Quivisia papinae
Philip H Coombes1, Dulcie A Mulholland, Milijaona Randrianarivelojosia
1School of Chemistry, University of KwaZulu-Natal, Howard College Campus, Durban 4041, South Africa. coombesp@ukzn.ac.za
Abstract:
An investigation of the seeds of the Madagascan Meliaceae Quivisia papinae has yielded five mexicanolide group limonoids, together with two known mexicanolide limonoids and two known triterpenoids. Quivisianolide A 9 possesses a hitherto unreported 9alpha,11alpha-epoxide ring, quivisianolide B 10 the corresponding delta(9(11)) double bond, and quivisianone 11 is a 17-keto seco-ring D compound.