tert-butyl (R)-3-(2-(3-(1-(tert-butoxycarbonylamino)ethyl)-5,6-dihydropyridin-1(2H)-yl)ethyl)-2-(2-ethoxy-2-oxoethyl)-1H-indole-1-carboxylate

tert-butyl 3-(2-(5-((R)-1-((tert-butoxycarbonyl)amino)ethyl)-6-cyano-3,6-dihydropyridin-1(2H)-yl)ethyl)-2-(2-ethoxy-2-oxoethyl)-1H-indole-1-carboxylate