octyl 2,3,4-tri-O-benzyl-β-D-glucopyranoside 、
(1S,3S,4S,5R,6R,8S)-4,5-Bis-benzyloxy-1-methyl-2,7,9,10-tetraoxa-tricyclo[4.3.2.03,8]undecane 在
4 A molecular sieve 、
三氟化硼乙醚 作用下,
以
1,2-二氯乙烷 为溶剂,
反应 1.5h,
以75%的产率得到Acetic acid (2S,3S,4S,5R,6R)-4,5-bis-benzyloxy-6-hydroxymethyl-2-((2R,3R,4S,5R,6R)-3,4,5-tris-benzyloxy-6-octyloxy-tetrahydro-pyran-2-ylmethoxy)-tetrahydro-pyran-3-yl ester