... (2,3,4,6-tetra- o- axetyl- -d- galactopyranozyl) thiosemicacbazon thế. .. 347 H×nh 1. Phæ hång ngo¹i cña N-(4-metylbenzyliden) -( 2,3,4,6-tetra- O- β -D- galactopyranozyl )thiosemicacbazon H×nh 2. Phæ ... N-(4-metylbenzyliden) -( 2,3,4,6-tetra- O- - D- galactopyranozyl )thiosemicacbazon B¶ng 2. C¸c d kiÖn phæ hång ngo¹i, céng h−ëng tõ h¹t nh©n 1 H- vμ 13 C-NMR cña N-(4-metylbenzyliden) -( 2,3,4,6-tetra- O- β -D- galactopyranozyl )thiosemicacbazon ... N-Benzyliden -( 2,3,4,6-tetra- O- acetyl- -D- galactopyranosyl) thiosemicarbazone were synthesized by condensation reaction between (2,3,4,6-tetra- O- acetyl- -D- galactopyranosyl) thiosemicarbazide and benzaldehyde substituted, using...