1-Butyl-2-methyl-4-((1S,2R,3R,4R)-1,2,3,4,5-pentaacetoxy-pentyl)-1H-pyrrole-3-carboxylic acid ethyl ester 在
sodium methylate 作用下,
以
甲醇 为溶剂,
以92%的产率得到1-Butyl-2-methyl-4-((1S,2R,3R,4R)-1,2,3,4,5-pentahydroxy-pentyl)-1H-pyrrole-3-carboxylic acid ethyl ester