The present disclosure provides, inter alia, compounds with MASP-2 inhibitory activity, compositions of such compounds and methods of making and using such compounds.

The present disclosure provides, inter alia, compounds with MASP-2 inhibitory activity, compositions of such compounds and methods of making and using such compounds.

A method of producing a polypeptide compound, wherein a peptide compound represented by formula (P) is obtained by inducing an amide formation reaction between an amino-protected lactam compound represented by formula (R1) and an amino acid ester or peptide ester compound represented by formula (R2).

##STR00001##

The definitions for the reference signs in formulae (R1), (R2), and (P) are as set forth in the claims.