Abstract
Trimethylstannyl)alanine esters containing a free amino group react with different N-benzoyloxycarbonyl amino acids in the presence of N,N 0 -dicyclohexylcarbodiimide to yield new dipeptides with b-(trimethylstannyl)alanine building blocks. Reactions at the stannyl group were studied in more detail in two glycyl alaninates. Their reaction with Me3SnCl without solvent yields the chlorostannyl-substituted compounds. The glycyl alaninates react with two equivalents of bromine to give the dibromostannylated compounds.
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