Pyridine series

5-Bromo-4-methylpicolinaldehyd

2-Methylpyrimidine-4-carboxald

Phenyl 4,6-O-benzylidene-b-D-t

Ethyl4,6-O-benzylidene-b-D-thi

PHENYL 2,3,4,6-TETRA-O-ACETYL-

Ethyl 2,3,4,6-tetra-O-acetyl-1

Phenyl 4,6-O-benzylidene-b-D-t

Ethyl 4,6-O-benzylidene-1-thio

PHENYL 2,3,4,6-TETRA-O-ACETYL-

ETHYL 2,3,4,6-TETRA-O-ACETYL-1

D-(-)-GULOSE

D-ALTROSE