| abstract |
NEW MATERIAL:A compd. of formula I [R 1 is alkoxymethyl, benzyloxymethyl, aminomethyl, COOH or halomethyl; R 2 is a group of formula IIWIV (R 3 WR 6 are H, lower alkyl, lower alkoxy, nitro, COOH, sulfonic acid, halogen or the like; R 7 is H, lower alkoxy, halogen or nitro; R 8 is H, methyl or trifluoromethyl; R 9 is H or halogen); n is 2W5]. n EXAMPLE: p-Nitrophenyl O-6-deoxy-6-[(2-pyridyl)amino]α-D-glucopyranosyl-(1→4)- O-α-O-glucopyranosyl-(1→4)-O-α-D-glucopyranosyl-(1→4)α-D-glucopyranosyl. n USE: A substrate for measuring the activity of α-amylase. n PREPARATION: A modified cyclodextrin is treated with cyclomaltodextringlucanotransferase in the presence of an acceptor and then with glucoamylase or α-glucosidase. n COPYRIGHT: (C)1988,JPO&Japio |