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tert-Butyl 2,2,2-trichloroacetimidate BENZYL 2,2,2-TRICHLOROACETIMIDATE 2,3,4,6-TETRA-O-ACETYL-ALPHA-D-GLUCOPYRANOSYL TRICHLOROACETIMIDATE 2,3,4-Tri-O-acetyl-α-D-glucuronide methyl ester trichloroacetimidate O-(2,3,4,6-TETRA-O-BENZYL-ALPHA-D-GALACTOPYRANOSYL)TRICHLOROACETIMIDATE Methyl 2,3,4-Tri-O-isobutyryl-1-O-trichloroacetimidoyl-a-D-glucopyranuronate O-ALLYL-2,2,2-TRICHLOROACETIMIDATE