Novel N1−C4 β-Lactam Bond Breakage. Synthesis of Enantiopure α-Alkoxy-γ-keto Acid Derivatives
摘要:
Addition reaction of 2-(trimethylsilyl)thiazole (TMST) to cis- or trans-4-formyl-beta-lactams gave enantiopure alpha-alkoxy-gamma-keto acid derivatives via a novel N1-C4 bond breakage of the beta-lactam nucleus. This is the first time that the cleavage of the N1-C4 bond on the beta-lactam nucleus has been shown to occur in 2-azetidinones lacking an aryl moiety at C4.
Novel N1−C4 β-Lactam Bond Breakage. Synthesis of Enantiopure α-Alkoxy-γ-keto Acid Derivatives
摘要:
Addition reaction of 2-(trimethylsilyl)thiazole (TMST) to cis- or trans-4-formyl-beta-lactams gave enantiopure alpha-alkoxy-gamma-keto acid derivatives via a novel N1-C4 bond breakage of the beta-lactam nucleus. This is the first time that the cleavage of the N1-C4 bond on the beta-lactam nucleus has been shown to occur in 2-azetidinones lacking an aryl moiety at C4.
Novel N1−C4 β-Lactam Bond Breakage. Synthesis of Enantiopure α-Alkoxy-γ-keto Acid Derivatives
作者:Benito Alcaide、Pedro Almendros、María C. Redondo
DOI:10.1021/ol049549j
日期:2004.5.1
Addition reaction of 2-(trimethylsilyl)thiazole (TMST) to cis- or trans-4-formyl-beta-lactams gave enantiopure alpha-alkoxy-gamma-keto acid derivatives via a novel N1-C4 bond breakage of the beta-lactam nucleus. This is the first time that the cleavage of the N1-C4 bond on the beta-lactam nucleus has been shown to occur in 2-azetidinones lacking an aryl moiety at C4.