MUMBAI, India, Nov. 2 -- Intellectual Property India has published a patent application (202641065326 A) filed by Ar Life Sciences Pvt Ltd on May 23, 2026, for An Improved Process For The Preparation Of Ethyl-2-(7-(4-Cyclopentyl-3- (trifluoromethyl)benzyloxy)-1,2,3,4-Tetra Hydrocyclopenta[b]indol-3-Yl)acetate.

Inventors include Kallam Krishna Chaitanya; and M. F. Stephen Babu.

The application for the patent was published on October 30, 2026, under issue no. 44/2026.

Abstract: An improved process for the process of the preparation of Ethyl-2-(7-(4-Cyclopentyl-3-(trifluoromethyl) benzyloxy)-1,2,3,4-tetra hydrocyclopenta [b] indol-3-yl) acetate compound of Formula I, which comprises of condensation of ethyl 2-(7- hydroxy-1,2,3,4-tetrahydrocyclopenta[b]indol-3-yl) acetate compound of Formula II with 4-(chloromethyl)- 1-cyclopentyl-2-(trifluoromethyl)benzene compound of Formula III, in the presence of a dimethyl formamide, potassium carbonate, ethyl acetate, process water and isolated in petroleum ether to give compound of Ethyl-2-(7-(4-Cyclopentyl-3-(trifluoromethyl)benzyloxy)-1,2,3,4- tetrahydrocyclopenta[b]indol-3-yl)acetate compound of Formula I which is further purified with ethanol.

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