methyl 2,3,4,6,7,8,9,10,11-nona-O-benzyl-L-threo-L-manno-α-D-gluco-dodeca-1,5-pyranosid-12-ulose 、
{2-[(4S,5R)-2,2-Dimethyl-5-((2S,3S,4S,5R,6S)-3,4,5-tris-benzyloxy-6-methoxy-tetrahydro-pyran-2-yl)-[1,3]dioxolan-4-yl]-2-oxo-ethyl}-phosphonic acid dimethyl ester 在
18-冠醚-6 、
potassium carbonate 作用下,
以
甲苯 为溶剂,
反应 48.0h,
生成 C
103H
108O
18 、 methyl 2,3,4,6,7,8,9,10,11-nona-O-benzyl-12-deoxy-12-C-(methyl 2,3,4,-tri-O-benzyl-9(E)-deoxy-6,7-O-isopropilydene-D-threo-α-D-gluco-nonapyranosid-8-ulos-9-ylidene)-L-threo-L-manno-α-D-gluco-dodeca-1,5-pyranoside