Tetrahedron Letters

The quettamines: a new class of isoquinoline alkaloids

MHA Zarga, GA Miana, M Shamma

Index: Zarga, Musa H. Abu; Miana, Ghulam A.; Shamma, Maurice Tetrahedron Letters, 1981 , vol. 22, p. 541 - 544

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Citation Number: 19

Abstract

Abstract Three quettamine type alkaloids, which incorporate either a benzofuran or a dihydrobenzofuran moiety within the molecular framework, have been obtained from Berberis baluchistanica. These are dihydrosecoquettamine (1), secoquettamine (2), and quettamine chloride (3). Alkaloids 1 and 3 are racemates. Hofmann degradation of quettamine (3) provides secoquettamine (2) and the styrene 4 which has a trans ...