三异丙基硅基三氟甲磺酸酯 、 4-Benzyloxy-3,5-dichloro-2-methoxy-6-methyl-benzoic acid (2R,3S,4R)-6-[(2R,3R,4S,5R,6R)-4-benzyloxy-5,6-bis-(4-methoxy-benzyloxy)-2-methyl-tetrahydro-pyran-3-yloxy]-4-hydroxy-2-methyl-tetrahydro-pyran-3-yl ester 在
2,6-二甲基吡啶 作用下,
以
二氯甲烷 为溶剂,
反应 1.0h,
生成
4-Benzyloxy-3,5-dichloro-2-methoxy-6-methyl-benzoic acid (2R,3R,4R,6S)-6-[(2R,3R,4S,5R,6R)-4-benzyloxy-5,6-bis-(4-methoxy-benzyloxy)-2-methyl-tetrahydro-pyran-3-yloxy]-2-methyl-4-triisopropylsilanyloxy-tetrahydro-pyran-3-yl ester 、 4-Benzyloxy-3,5-dichloro-2-methoxy-6-methyl-benzoic acid (2R,3R,4R,6R)-6-[(2R,3R,4S,5R,6R)-4-benzyloxy-5,6-bis-(4-methoxy-benzyloxy)-2-methyl-tetrahydro-pyran-3-yloxy]-2-methyl-4-triisopropylsilanyloxy-tetrahydro-pyran-3-yl ester