L-Proline, N-(methoxycarbonyl)-L-valyl-5-methyl-, 3-[2-[[[(2S,4S)-1-[(1,1-dimethylethoxy)carbonyl]-4-(methoxymethyl)-2-pyrrolidinyl]carbonyl]oxy]acetyl]-8,9,10,11-tetrahydro-8-oxo-5H-benzo[d]naphtho[2,3-b]pyran-9-yl ester, (5S)-

Velpatasvir intermediate

Tert-butyl (2S,4S)-2-[5-[6-[(2S,5S)-1-[(2S)-2-(methoxycarbonylamino)-3-methylbutanoyl]-5-methylpyrrolidin-2-yl]-21-oxa-5,7-diazapentacyclo[11.8.0.03,11.04,8.014,19]henicosa-1(13),2,4(8),5,11,14(19),15,17-octaen-17-yl]-1H-imidazol-2-yl]-4-(methoxymethyl)pyrrolidine-1-carboxylate

Velpatasvir intermediate

8-Chloro-5,10-dihydro-11H-dibenzo[b,e][1,4]-diazepin-11-one

Pharmaceutical intermediate synthesis

1-Chloroethyl chloroformate

Pharmaceutical intermediate for synthesis

3-(bromomethyl)benzamide

Pharmaceutical intermediate

4-(5-Methyl-3-phenyl-1,2-oxazol-4-yl)benzene-1-sulfonyl chloride

Pharmaceutical intermediate for valdecoxib synthesis