abstract |
The invention relates to a method for producing the CGRP antagonist 1-[N2-[3,5-dibromo-N-[[4-(3,4-dihydro-2(1H)-oxoquinazoline-3-yl)-1-piperidinyl]carbonyl]-D-tyrosyl]-L-Iysyl]-4-(4-pyridinyl)-piperazine of formula (I). The disclosed method allows said compound to be produced in great quantities, at great yields, and at a high degree of purity. |