6-isothiocyanato-N-[bis[3-(2,3,4,6-tetra-O-acetyl-α-D-mannopyranosyl)thioureidomethyl]methyl]hexanamide 在
吡啶 、
sodium methylate 作用下,
以
甲醇 为溶剂,
生成 N-[1,3-bis[[(2S,3S,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]carbamothioylamino]propan-2-yl]-6-[[(2R,3S,4S,5R,6S)-3,4,5-trihydroxy-6-methoxyoxan-2-yl]methylcarbamothioylamino]hexanamide