Steroids and related natural products. 104. Bufadienolides. 36. Synthesis of bufalitoxin and bufotoxin

GR Pettit, Y Kamano, P Drasar, M Inoue…

Index: Pettit, George R.; Kamano, Yoshiaki; Drasar, Pavel; Inoue, Masuo; Knight, John C. Journal of Organic Chemistry, 1987 , vol. 52, # 16 p. 3573 - 3578

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Citation Number: 27

Abstract

(15) Pettit, GR; Brown, P.; Bruschweiler, F.; Houghtun, LE Chem. Commun. 1970, 1566. be expected to follow a comparable course. Reactions with tert-butyl chromate, 16 chromium trioxide-pyridine complex, 17 and tert-butyl perbenzoate with copper (1) bromidels were chosen for detailed study. Each reagent was carefully evaluated by using different solvents and reaction conditions. With oxidation of olefin 4 by tert-butyl chromate in carbon ...