化学合成。
化学合成
合成路线 1（1. 合成：118811-07-7）
产率：100%
合成条件：With triethylamine In dichloromethane at 20℃; for 20 h;
实验步骤：向化合物（33）（5g，1当量，24.8mmol）的二氯甲烷（50mL）溶液中加入三乙胺（13.9mL，4当量，99.4mmol）和对甲苯磺酰氯（9.47g，2当量， 49.7毫摩尔）。 将溶液在室温下搅拌20小时，然后真空浓缩该溶液。 然后将残余物溶于二氯甲烷（20mL）和水（20mL）中，用DCM（20mL）萃取，用1N HCl（40mL）洗涤，用DCM（2×40mL）萃取两次，经MgSO4干燥。andevaporated。 然后通过硅胶柱色谱法（石油醚/ EtOAc 8：2）纯化得到的混合物，得到化合物（34），为白色结晶固体（8.7g，定量收率）
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