From: Mugunthan G (mugunthan_gee$##$yahoo.co.in)
Date: Tue May 23 2006 - 14:26:44 EDT
dear mathur,
u need to protect both the amine as well as acid end of the amino acid, before u do anything with SH group, otherwise u will get a mixture of products including n-alkylation, u can select a suitable protecting group which is stable to NaH
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