Cysteine-S-trityl a Key Derivative to Prepare N-Methyl Cysteines

详细信息    查看全文

• 作者：Eleonora Marcucci ; Nú ; ria Bayó ; -Puxan ; Judit Tulla-Puche ; Jan Spengler ; Fernando Albericio
• 刊名：Journal of Combinatorial Chemistry
• 出版年：2008
• 出版时间：January 2008
• 年：2008
• 卷：10
• 期：1
• 页码：69 - 78
• 全文大小：544K
• 年卷期：v.10,no.1(January 2008)
• ISSN：1520-4774

文摘

S-Trt Cys are used as precursors for the synthesis of protected NMe−Cys. N-Methylation of Alloc−Cys(Trt)−OH and Boc−Cys(Trt)−OH gives the corresponding N-methylated derivatives in good yields and purities, which can be further derivatized in solution to obtain a myriad of S-protected derivatives. To further broaden the scope of this methodology, the N^α-amino protecting group of the NMe−S−protected Cys can be replaced easily either on the solid phase (from the Alloc precursor) or in solution (from the Boc precursor). Thus, this convenient route allows us to obtain many different protected NMe−Cys, which were of limited accessibility until now.