(2S,4E)-4-[2-[(2S)-2-carboxy-6-hydroxy-5-[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-2,3-dihydroindol-1-ium-1-ylidene]ethylidene]-2,3-dihydro-1H-pyridine-2,6-dicarboxylic acid 在
溶剂黄146 作用下,
以
水 为溶剂,
反应 0.67h,
生成 (2S)-4-[2-[6-hydroxy-5-[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-2,3-dihydroindol-1-ium-1-ylidene]ethylidene]-2,3-dihydro-1H-pyridine-2,6-dicarboxylic acid