methyl 3,4-di-O-benzyl-6-O-(3-carboxypropanoyl)-2-O-levulinoyl-α-D-mannopyranoside 、 4-oxo-pentanoic acid 4,5-bis-benzyloxy-6-benzyloxymethyl-2-trichloroacetimidoyloxy-tetrahydro-pyran-3-yl ester 、 6-[4-(4,5-bis-benzyloxy-6-benzyloxymethyl-2-trichloroacetimidoyloxy-tetrahydro-pyran-3-yloxymethyl)-phenoxy]-hexanoic acid ethyl ester 、
乙酸酐 以10 mg的产率得到acetic acid 3,4-bis-benzyloxy-5-[4,5-bis-benzyloxy-6-benzyloxymethyl-3-(4,5-bis-benzyloxy-6-benzyloxymethyl-3-hydroxy-tetrahydro-pyran-2-yloxy)-tetrahydro-pyran-2-yloxy]-6-methoxy-tetrahydro-pyran-2-ylmethyl ester