磺达肝癸钠 中间体 N-3.1

3-[3-Azido-5-[5-[3-azido-6-(hydroxymethyl)-4,5-bis(phenylmethoxy)oxan-2-yl]oxy-6-carboxy-3,4-bis(phenylmethoxy)oxan-2-yl]oxy-4-hydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-6-[5-azido-2-(hydroxymethyl)-6-methoxy-4-phenylmethoxyoxan-3-yl]oxy-5-hydroxy-4-phenylmethoxyoxane-2-carboxylic acid