Acetic acid (2R,3R,4S,5S,6R)-4,5-diacetoxy-6-acetoxymethyl-2-[3-cyano-4-(4-methoxy-phenyl)-7,7-dimethyl-5-oxo-2-thioxo-5,6,7,8-tetrahydro-2H-quinolin-1-yl]-tetrahydro-pyran-3-yl ester 在
氨 作用下,
以
甲醇 为溶剂,
反应 0.5h,
以80%的产率得到4-(4-methoxyphenyl)-7,7-dimethyl-5-oxo-2-sulfanylidene-1-[(2R,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]-6,8-dihydroquinoline-3-carbonitrile