1: 1-(4-chlorobenzoyl)-5-methoxy-2-methyl-1H-indole-3-acetic acid With bis-(2-oxo-3-oxazolidinyl)phosphoryl chloride; triethylamine in dichloromethane T=20°C; Substitution; 0.166667 h; 2: phenethylamine in dichloromethane T=20°C; Acylation; Further stages.;