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CAS 1206524-79-9
1-(tert-butyl) 2-methyl (2S,4R)-4-((3-chloro-7-methoxyquinoxalin-2-yl)oxy)pyrrolidine-1,2-dicarboxylate
Codes：GRAZ-006
Application context (from source-drug indications)
丙型肝炎Grazoprevir HydrateHIV感染Grazoprevir Hydrate慢性丙型肝炎Grazoprevir Hydrate肾功能不全Grazoprevir Hydrate
Source drugs (routes using this intermediate)
| Drug | Tier | Expiry |
|---|---|---|
| Grazoprevir HydrateGrazoprevir Hydrate | Tier C — Watch / trade | - |
Position in synthesis routes (up/downstream chain)
Ordered by route registration; left → right is the synthesis direction. The highlighted node is the current CAS; others link to their own profiles.
4-methoxybenzene-1,2-diamine dihydrochloride→diethyl oxalate→6-methoxyquinoxaline-2,3-diol→3-chloro-7-methoxyquinoxalin-2-ol→(2S,4S)-1-tert-butyl 2-methyl 4-(((4-bromophenyl)sulfonyl)oxy)pyrrolidine-1,2-dicarboxylate→1-(tert-butyl) 2-methyl (2S,4R)-4-((3-chloro-7-methoxyquinoxalin-2-yl)oxy)pyrrolidine-1,2-dicarboxylate→methyl (2S,4R)-4-((3-chloro-7-methoxyquinoxalin-2-yl)oxy)pyrrolidine-2-carboxylate hydrochloride→(R)-3,3-dimethyl-2-((((1R,2R)-2-(pent-4-en-1-yl)cyclopropoxy)carbonyl)amino)butanoic acid→methyl (2S,4R)-4-((3-chloro-7-methoxyquinoxalin-2-yl)oxy)-1-((S)-3,3-dimethyl-2-((((1R,2R)-2-(pent-4-en-1-yl)cyclopropoxy)carbonyl)amino)butanoyl)pyrrolidine-2-carboxylate→potassium trifluoro(vinyl)borate→methyl (2S,4R)-1-((S)-3,3-dimethyl-2-((((1R,2R)-2-(pent-4-en-1-yl)cyclopropoxy)carbonyl)amino)butanoyl)-4-((7-methoxy-3-vinylquinoxalin-2-yl)oxy)pyrrolidine-2-carboxylate→GRAZ-012→methyl (33R,35S,91R,92R,5S,E)-5-(tert-butyl)-17-methoxy-4,7-dioxo-2,8-dioxa-6-aza-1(2,3)-quinoxalina-3(3,1)-pyrrolidina-9(1,2)-cyclopropanacyclotetradecaphan-13-ene-35-carboxylate→methyl (33R,35S,91R,92R,5S)-5-(tert-butyl)-17-methoxy-4,7-dioxo-2,8-dioxa-6-aza-1(2,3)-quinoxalina-3(3,1)-pyrrolidina-9(1,2)-cyclopropanacyclotetradecaphane-35-carboxylate→(33R,35S,91R,92R,5S)-5-(tert-butyl)-17-methoxy-4,7-dioxo-2,8-dioxa-6-aza-1(2,3)-quinoxalina-3(3,1)-pyrrolidina-9(1,2)-cyclopropanacyclotetradecaphane-35-carboxylic acid→(1R,2S)-1-amino-N-(cyclopropylsulfonyl)-2-vinylcyclopropanecarboxamide hydrochloride→(33R,35S,91R,92R,5S)-5-(tert-butyl)-N-((1R,2S)-1-((cyclopropylsulfonyl)carbamoyl)-2-vinylcyclopropyl)-17-methoxy-4,7-dioxo-2,8-dioxa-6-aza-1(2,3)-quinoxalina-3(3,1)-pyrrolidina-9(1,2)-cyclopropanacyclotetradecaphane-35-carboxamide→but-3-en-1-ylmagnesium bromide→acrylaldehyde→(E)-(hepta-1,6-dien-1-yloxy)trimethylsilane→trimethyl(2-(pent-4-en-1-yl)cyclopropoxy)silane→2-(pent-4-en-1-yl)cyclopropan-1-ol→(1R,2R)-2-(pent-4-en-1-yl)cyclopropyl acetate→(1R,2R)-2-(pent-4-en-1-yl)cyclopropan-1-ol→methyl (S)-2-isocyanato-3,3-dimethylbutanoate→methyl (S)-3,3-dimethyl-2-((((1R,2R)-2-(pent-4-en-1-yl)cyclopropoxy)carbonyl)amino)butanoate
1-(tert-butyl) 2-methyl (2S,4R)-4-((3-chloro-7-methoxyquinoxalin-2-yl)oxy)pyrrolidine-1,2-dicarboxylate→methyl (33R,35S,91R,92R,5S)-5-(tert-butyl)-17-methoxy-4,7-dioxo-2,8-dioxa-6-aza-1(2,3)-quinoxalina-3(3,1)-pyrrolidina-9(1,2)-cyclopropanacyclotetradecaphane-35-carboxylate→(33R,35S,91R,92R,5S)-5-(tert-butyl)-17-methoxy-4,7-dioxo-2,8-dioxa-6-aza-1(2,3)-quinoxalina-3(3,1)-pyrrolidina-9(1,2)-cyclopropanacyclotetradecaphane-35-carboxylic acid→(1R,2R)-2-(pent-2-yn-1-yl)cyclopropan-1-ol→(S)-2-amino-3,3-dimethylbutanoic acid→(R)-3,3-dimethyl-2-((((1R,2R)-2-(pent-2-yn-1-yl)cyclopropoxy)carbonyl)amino)butanoic acid→(S)-2-((((1R,2R)-2-(5-(3-(((3R,5S)-1-(tert-butoxycarbonyl)-5-(methoxycarbonyl)pyrrolidin-3-yl)oxy)-6-methoxyquinoxalin-2-yl)pent-4-yn-1-yl)cyclopropoxy)carbonyl)amino)-3,3-dimethylbutanoic acid→(S)-2-((((1R,2R)-2-(5-(3-(((3R,5S)-1-(tert-butoxycarbonyl)-5-(methoxycarbonyl)pyrrolidin-3-yl)oxy)-6-methoxyquinoxalin-2-yl)pentyl)cyclopropoxy)carbonyl)amino)-3,3-dimethylbutanoic acid→(1R,2S)-1-amino-N-(cyclopropylsulfonyl)-2-vinylcyclopropane-1-carboxamide
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