Heptanoic acid (2R,3R,4R,5S)-5-[(R)-carbamoyl-((3aS,4S,7aS)-2,2-dimethyl-6-phenylcarbamoyl-3a,7a-dihydro-4H-[1,3]dioxolo[4,5-c]pyran-4-yloxy)-methyl]-2-(2,4-dioxo-3,4-dihydro-2H-pyrimidin-1-yl)-4-methoxy-tetrahydro-furan-3-yl ester 在
Amberlyst 15 (H
+) 作用下,
以
甲醇 为溶剂,
生成
Heptanoic acid (2R,3R,4R,5S)-5-[(R)-carbamoyl-((2S,3S,4S)-3,4-dihydroxy-6-phenylcarbamoyl-3,4-dihydro-2H-pyran-2-yloxy)-methyl]-2-(2,4-dioxo-3,4-dihydro-2H-pyrimidin-1-yl)-4-methoxy-tetrahydro-furan-3-yl ester