Abstract Treatment of methyl 5-acetamido-2, 4, 7, 8, 9-penta-O-acetyl-3, 5-dideoxy-β-d- glycero-d-galacto-2-nonulopyranosonate (1) severally with thiophenol, phenylmethanethiol, and ethanethiol in the presence of boron trifluoride etherate gave the corresponding 2-thio ...
![O-ethyl S-[methyl (5-acetamido-4,7,8,9-tetra-O-acetyl-3,5-dideoxy-D-glycero-α-D-galacto-non-2-ulopyranosyl)onate] dithiocarbonate结构式](https://image.chemsrc.com/caspic/354/121512-94-5.png)
![[methyl (5-acetamido-4,7,8,9-tetra-O-acetyl-3,5-dideoxy-α-D-glycero-D-galacto-2-nonulopyranosyl)onate] phenyl sulfone结构式](https://image.chemsrc.com/caspic/392/121512-93-4.png)