Isolation and characterization of a presumed biosynthetic precursor of camptothecin from extracts of Camptotheca acuminata
作者:Brad K. Carte、Charles DeBrosse、Drake Eggleston、Mark Hemling、Mary Mentzer、Benjamin Poehland、Nelson Troupe、John W. Westley、Sidney M. Hecht
DOI:10.1016/s0040-4020(01)88369-1
日期:1990.1
A biosynthetic precursor 4 of the antitumoralkaloid camptothecin (1) has been isolated fromalkaloid enriched extracts of Camptothecaacuminata. The structure of 4, which was determined both in the solid state by x-ray diffraction and in solution by NMR analysis, provides strong evidence in support of the proposed biosynthetic scheme for camptothecin (1).