(2S,3R,4S)-3,4-Bis-benzyloxy-tetrahydro-thiophene-2-carbaldehyde 、 (1,3-dioxan-2-yl)ethylmagnesium bromide 以
四氢呋喃 为溶剂,
反应 14.0h,
生成 1,4-anhydro-6,7-dideoxy-2,3-di-O-benzyl-4-thio-7-(1',3'-dioxan-2'-yl)-(D-talo/L-allo)-heptitol 、 1,4-anhydro-6,7-dideoxy-2,3-di-O-benzyl-4-thio-7-(1',3'-dioxan-2'-yl)-D-manno-heptitol 、 1,4-anhydro-6,7-dideoxy-2,3-di-O-benzyl-4-thio-7-(1',3'-dioxan-2'-yl)-L-gluco-heptitol