Abstract

The present invention provides new solid state forms of L-Arginine, (3R)-7-[[4-cyclopentyl-3-(trifluoromethyl)phenyl]methoxy]-1,2,3,4-tetrahydrocyclopent[b]indole-3-acetate represented by the following structural formula-1a and processes for preparation thereof.

The present invention also provides various processes for the preparation of amorphous form of L-Arginine, (3R)-7-[[4-cyclopentyl-3-(trifluoromethyl)phenyl]methoxy]-1,2,3,4-tetrahydrocyclopent[b]indole-3-acetate.

The present invention further provides pharmaceutical compositions comprising solid state forms of compound of formula-1a.

Formula-1a

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