Biosynthesis. Part 28.1,2 Colchicine: definition of intermediates between O-methylandrocymbine and colchicine and studies on speciosine
作者:Alan C. Barker、David R. Julian、Robert Ramage、Robert N. Woodhouse、Gilbert Hardy、Edward McDonald、Alan R. Battersby
DOI:10.1039/a803851a
日期:——
samples are prepared of demecolcine 3, colchicine 4, N-formyl-N-deacetylcolchicine 6 and N-deacetylcolchicine 7, the last depending on a new method for its preparation from colchicine. Incorporation experiments with these compounds and with specifically labelled autumnaline 1 support the pathway 2 → 5 → 3 → 6 → 7 → 4 as the terminal sequence for the biosynthesis of colchicine.
标记的样品制备美可辛3,秋水仙碱4,Ñ甲酰基Ñ -deacetylcolchicine 6和Ñ -deacetylcolchicine 7,最后根据从秋水仙素及其制备的新方法。用这些化合物以及经过特殊标记的秋天茶碱1的掺入实验支持途径2→5→3→6→7→4作为秋水仙碱生物合成的末端序列。