NOVEL PROCESS FOR THE PREPARATION OF TRANS-3ETHYL-2 5-DIHYDRO-4-METHYL-N-2-4-(4METHYL 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.