2-Pyrrolidinecarboxamide, N-(2-(2-(diazoacetyl)-1-pyrrolidinyl)-1-(1H-imidazol-4-ylmethyl)-2-oxoethyl)-5-oxo-, (2S-(2R*(R*(R*))))- 76760-06-0 Thyrotropin releasing hormone diazomethyl ketone Trh-dmk