3,4,6-tri-O-benzyl-2-nitro-D-galactal 、 2,3,4-tri-O-acetyl-6-O-benzyl-α-D-galactose 在
potassium tert-butylate 作用下,
以
甲苯 、
正庚烷 为溶剂,
反应 2.17h,
生成 Acetic acid (2S,3R,4S,5S,6R)-4,5-diacetoxy-6-benzyloxymethyl-2-((2R,3R,4R,5R,6R)-4,5-bis-benzyloxy-6-benzyloxymethyl-3-nitro-tetrahydro-pyran-2-yloxy)-tetrahydro-pyran-3-yl ester 、
Acetic acid (2R,3R,4S,5S,6R)-4,5-diacetoxy-6-benzyloxymethyl-2-((2R,3R,4R,5R,6R)-4,5-bis-benzyloxy-6-benzyloxymethyl-3-nitro-tetrahydro-pyran-2-yloxy)-tetrahydro-pyran-3-yl ester