HCID 22803567, compound → HCID 22803568, compound

Participants

Reaction Steps

When an equivalent quantity of N-t-butoxycarbonyl-β-(2-thienyl)-L-alanine 2,4,5-trichlorophenyl ester is substituted for the N-t-butoxycarbonyl-L-tryptophan 2,4,5-trichlorophenyl ester of Example 5 and the procedure detailed therein substantially repeated, there is obtained N-t-butoxycarbonyl-β-(2-thienyl)-L-alanyl-L-methionine benzyl ester.

Provenance & Evidence