The Biosynthesis of the phenethylisoquinoline alkaloid colchicine. Early and intermediate stages
作者:Richard B. Herbert、Abdullah E. Kattah、Eric Knagg
DOI:10.1016/s0040-4020(01)87895-9
日期:1990.1
that in the early stages of biosynthesis the major pathway to colchicine (7) and demecolcine (6) is (13)→(15)→(16)→(19). Condensation of the aldehyde (19) with dopamine affords a set of phenethylisoquinolines which are precursors for the alkaloids (6) and (7) and (21) is identified as the first of these followed by (22) and then (1); (39) is by contrast also an exellent alkaloid precursor; it is deduced