Trifluoro-acetic acid (1R,2R,3S)-3-methoxy-2-methyl-5-(2,2,2-trifluoro-acetoxy)-1-((R)-1-{(4R,5R,6S)-2,2,5-trimethyl-6-[(S)-1-(5-methyl-6-oxo-3,6-dihydro-2H-pyran-2-yl)-ethyl]-[1,3]dioxan-4-yl}-ethyl)-pentyl ester 在
吡啶 作用下,
以
二氯甲烷 、
N,N-二甲基甲酰胺 为溶剂,
反应 53.17h,
生成
(2Z,4E)-(S)-6-[(4S,5R,6S)-6-((1S,2R,3S,4S)-2-Hydroxy-4-methoxy-1,3-dimethyl-6-methylsulfanyl-hexyl)-2,2,5-trimethyl-[1,3]dioxan-4-yl]-2-methyl-hepta-2,4-dienoic acid