An efficient method for asymmetric synthesis of apratoxin E 2 is described in this report. The chiral lactone 8, recycled from the degradation of saponin glycosides, was utilized to prepare the non-peptide fragment 6. In addition to this "from nature to nature" strategy, olefin cross-metathesis (CM) was applied as an alternative approach for the formation of the double bond. Moreover, pentafluorophenyl diphenylphosphinate was found to be an efficient condensation reagent for the macrocyclization.
机构:
Chongqing Normal Univ, Active Carbohydrate Res Inst, Coll Chem, Chongqing Key Lab Green Synth & Applicat, Chongqing 401331, Peoples R China
Hainan Normal Univ, Coll Chem & Chem Engn, Key Lab Trop Med Resource Chem, Minist Educ, Haikou 571158, Hainan, Peoples R ChinaChongqing Normal Univ, Active Carbohydrate Res Inst, Coll Chem, Chongqing Key Lab Green Synth & Applicat, Chongqing 401331, Peoples R China
Zhou, Shiyang
Huang, Gangliang
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Chongqing Normal Univ, Active Carbohydrate Res Inst, Coll Chem, Chongqing Key Lab Green Synth & Applicat, Chongqing 401331, Peoples R ChinaChongqing Normal Univ, Active Carbohydrate Res Inst, Coll Chem, Chongqing Key Lab Green Synth & Applicat, Chongqing 401331, Peoples R China
机构:
Binzhou Med Univ, Affiliated Hosp, Dept Gastroenterol, Binzhou City, Shandong, Peoples R ChinaBinzhou Med Univ, Affiliated Hosp, Dept Gastroenterol, Binzhou City, Shandong, Peoples R China
Chen, Yan
Hou, Yiwei
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Binzhou Med Univ, Affiliated Hosp, Dept Neurol, 661,2nd Yellow River Rd, Binzhou City 256603, Shandong, Peoples R ChinaBinzhou Med Univ, Affiliated Hosp, Dept Gastroenterol, Binzhou City, Shandong, Peoples R China
Hou, Yiwei
Ge, Ruli
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Binzhou Med Univ, Affiliated Hosp, Dept Neurol, 661,2nd Yellow River Rd, Binzhou City 256603, Shandong, Peoples R ChinaBinzhou Med Univ, Affiliated Hosp, Dept Gastroenterol, Binzhou City, Shandong, Peoples R China
Ge, Ruli
Han, Jianmei
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机构:
Yangxin Cty Peoples Hosp, Dept Neurol, Binzhou, Shandong, Peoples R ChinaBinzhou Med Univ, Affiliated Hosp, Dept Gastroenterol, Binzhou City, Shandong, Peoples R China
Han, Jianmei
Xu, Jing
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机构:
Binzhou Med Univ, Affiliated Hosp, Dept Neurol, 661,2nd Yellow River Rd, Binzhou City 256603, Shandong, Peoples R ChinaBinzhou Med Univ, Affiliated Hosp, Dept Gastroenterol, Binzhou City, Shandong, Peoples R China
Xu, Jing
Chen, Jinbo
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Binzhou Med Univ, Affiliated Hosp, Dept Neurol, 661,2nd Yellow River Rd, Binzhou City 256603, Shandong, Peoples R ChinaBinzhou Med Univ, Affiliated Hosp, Dept Gastroenterol, Binzhou City, Shandong, Peoples R China
Chen, Jinbo
Wang, Hongcai
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机构:
Binzhou Med Univ, Affiliated Hosp, Dept Neurol, 661,2nd Yellow River Rd, Binzhou City 256603, Shandong, Peoples R ChinaBinzhou Med Univ, Affiliated Hosp, Dept Gastroenterol, Binzhou City, Shandong, Peoples R China
机构:
Nanjing Mil Command, Fuzhou Gen Hosp, Dept Pediat, Fuzhou 350025, Peoples R ChinaNanjing Mil Command, Fuzhou Gen Hosp, Dept Pediat, Fuzhou 350025, Peoples R China
Wang, Chengfeng
Liang, Qinchuan
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机构:
Shanghai Jiao Tong Univ, Sch Med, Xinhua Hosp, Pediat Neurosurg, Shanghai, Peoples R ChinaNanjing Mil Command, Fuzhou Gen Hosp, Dept Pediat, Fuzhou 350025, Peoples R China
Liang, Qinchuan
Chen, Guangming
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机构:
Nanjing Mil Command, Fuzhou Gen Hosp, Dept Pediat, Fuzhou 350025, Peoples R ChinaNanjing Mil Command, Fuzhou Gen Hosp, Dept Pediat, Fuzhou 350025, Peoples R China
Chen, Guangming
Jing, Junjie
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机构:
Nanjing Mil Command, Fuzhou Gen Hosp, Dept Neurosurg, Fuzhou 350025, Peoples R ChinaNanjing Mil Command, Fuzhou Gen Hosp, Dept Pediat, Fuzhou 350025, Peoples R China
Jing, Junjie
Wang, Shousen
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机构:
Nanjing Mil Command, Fuzhou Gen Hosp, Dept Neurosurg, Fuzhou 350025, Peoples R ChinaNanjing Mil Command, Fuzhou Gen Hosp, Dept Pediat, Fuzhou 350025, Peoples R China