Novel process for the preparation of trans-3- ethyl-2,5- dihydro-4- methyl-n-(2-( 4-(((((4-methyl cyclohexyl) amino)carbonyl) amino)sulfonyl) phenyl)ethyl) -2-oxo-1h-pyrrole -1-carboxamide

摘要

The present invention provides a novel process for preparation of trans-3-ethyl 2,5-dihydro-4-methyl-N-[2-[4-[[[[(4-methyl cyclohexyl)amino]carbonyl]amino]sulfonyl]phenyl]ethyl]-2-oxo-1H-pyrrole-1-carboxamide via the novel intermediate compounds of formula 3.