乙酸酐 、 6-C-(2-azi-[5-
3H]-5-thiobenzoylpentyl)-1,2:3,4-di-O-isopropylidene-α-D-galactopyranose 、
Acetic acid 3-(2-acetoxy-3-oxiranylmethoxy-propoxy)-2,2-bis-(2-acetoxy-3-oxiranylmethoxy-propoxymethyl)-propyl ester 在
吡啶 、
sodium methylate 作用下,
生成 2,30-diazi-[5-
3H]-8,12,20,24-tetraacetoxy-16-acetoxymethyl-1,31-bis(6-C-1,2:3,4-di-O-isopropylidene-α-D-galactopyranos-6-yl)-16-[2-azi-8,12-diacetoxy-1-(6-C-1,2:3,4-di-O-isopropylidene-α-D-galactopyranos-6-yl)-10,14-dioxa-6-thiahexadecyl]-10,14,18,.