Ma. Szarek et al., SYNTHESIS AND EVALUATION OF 1,5,6-TRIDEOXY-6,6-DIFLUORO-1,5-IMINO-D-GLUCITOL (1,6-DIDEOXY-6,6-DIFLUORONOJIRIMYCIN) AS A GLUCOSIDASE INHIBITOR, Carbohydrate research, 299(3), 1997, pp. 165-170
1,5,6-Trideoxy-6,6-difluoro-1,5-imino-D-glucitol hydrochloride (2) and
1,5,6-trideoxy-6,6-difluoro-1,5-imino-D-glucitol (3) have been synthe
sized from L-sorbose. The formation of the C-5 difluoromethyl group wa
s accomplished by difluorination of a carbonyl group by DAST. The resu
lts of in vitro enzymic evaluation of 3 indicate that it is a competit
ive inhibitor of yeast alpha-glucosidase (K-i = 7.5 mM) and a noncompe
titive inhibitor of almond beta-glucosidase (K-i = 8.7 mM). (C) 1997 E
lsevier Science Ltd.