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CAS 149-73-5
Orthoformic acid trimethyl ester
Codes: (II)409139-2-a, (IIa)122234-13-a
Application context (from source-drug indications)
Transthyretin amyloidosisTafamidisHeart diseaseTafamidisDyslipidaemiaFenofibrate/SimvastatinHyperlipidaemiaFenofibrate/SimvastatinCardiac and vascular disordersFenofibrate/SimvastatinHypercholesterolaemiaFenofibrate/SimvastatinHyperlipidaemiaSimvastatinMyocardial infarctionSimvastatinDyslipidaemiaSimvastatinHeterozygous familial hypercholesterolaemiaSimvastatinStrokeSimvastatinHypercholesterolaemiaSimvastatin
Source drugs (routes using this intermediate)
| Drug | Tier | Expiry |
|---|---|---|
| Tafamidis | Tier C — Watch / trade | - |
| Fenofibrate/Simvastatin | Tier C — Watch / trade | - |
| Simvastatin | 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-Carboxy-2-hydroxyphenyl)amine→Orthoformic acid trimethyl ester→1,3-Benzoxazole-6-carboxylic acid→1,3-Benzoxazole-6-carbonyl chloride→1,3-Benzoxazol-6-yl(morpholin-4-yl)methanone→1,3-Dichloro-5-iodobenzene→[2-(3,5-Dichlorophenyl)-1,3-benzoxazol-6-yl]-morpholinomethanone→2-(3,5-Dichlorophenyl)benzo[d]oxazole-6-carboxylic acid
4(R)-Hydroxy-6(R)-[2-[(1S,2S,6R,8S,8aR)-8-hydroxy-2,6-dimethyl-1,2,6,7,8,8a-hexahydronaphthalenyl]ethyl]tetrahydropyran-2-one→Orthoformic acid trimethyl ester→(Diethoxymethoxy)ethane→Methyl [(4R,6R)-6-[2-[(1S,2S,6R,8S,8aR)-8-hydroxy-2,6-dimethyl-1,2,6,7,8,8a-hexahydronaphthalen-1-yl]ethyl]-2-methoxy-1,3-dioxan-4-yl]acetate→Ethyl [(4R,6R)-2-ethoxy-6-[2-[(1S,2S,6R,8S,8aR)-8-hydroxy-2,6-dimethyl-1,2,6,7,8,8a-hexahydronaphthalen-1-yl]ethyl]-1,3-dioxan-4-yl]acetate→2,2-Dimethylbutanoyl chloride→(1S,3R,7S,8S,8aR)-8-[2-[(4R,6R)-2-Methoxy-6-(2-methoxy-2-oxoethyl)-1,3-dioxan-4-yl]ethyl]-3,7-dimethyl-1,2,3,7,8,8a-hexahydronaphthalen-1-yl 2,2-dimethylbutanoate→(1S,3R,7S,8S,8aR)-8-[2-[(4R,6R)-2-Ethoxy-6-(2-ethoxy-2-oxoethyl)-1,3-dioxan-4-yl]ethyl]-3,7-dimethyl-1,2,3,7,8,8a-hexahydronaphthalen-1-yl 2,2-dimethylbutanoate→(betaR,deltaR,1S,2S,6R,8S,8aR)-8-(2,2-Dimethyl-1-oxobutoxy)-1,2,6,7,8,8a-hexahydro-beta,delta-dihydroxy-2,6-dimethyl-1-naphthaleneheptanoic acid ammonium salt
4(R)-Hydroxy-6(R)-[2-[(1S,2S,6R,8S,8aR)-8-hydroxy-2,6-dimethyl-1,2,6,7,8,8a-hexahydronaphthalenyl]ethyl]tetrahydropyran-2-one→Orthoformic acid trimethyl ester→(Diethoxymethoxy)ethane→Methyl [(4R,6R)-6-[2-[(1S,2S,6R,8S,8aR)-8-hydroxy-2,6-dimethyl-1,2,6,7,8,8a-hexahydronaphthalen-1-yl]ethyl]-2-methoxy-1,3-dioxan-4-yl]acetate→Ethyl [(4R,6R)-2-ethoxy-6-[2-[(1S,2S,6R,8S,8aR)-8-hydroxy-2,6-dimethyl-1,2,6,7,8,8a-hexahydronaphthalen-1-yl]ethyl]-1,3-dioxan-4-yl]acetate→2,2-Dimethylbutanoyl chloride→(1S,3R,7S,8S,8aR)-8-[2-[(4R,6R)-2-Methoxy-6-(2-methoxy-2-oxoethyl)-1,3-dioxan-4-yl]ethyl]-3,7-dimethyl-1,2,3,7,8,8a-hexahydronaphthalen-1-yl 2,2-dimethylbutanoate→(1S,3R,7S,8S,8aR)-8-[2-[(4R,6R)-2-Ethoxy-6-(2-ethoxy-2-oxoethyl)-1,3-dioxan-4-yl]ethyl]-3,7-dimethyl-1,2,3,7,8,8a-hexahydronaphthalen-1-yl 2,2-dimethylbutanoate→(betaR,deltaR,1S,2S,6R,8S,8aR)-8-(2,2-Dimethyl-1-oxobutoxy)-1,2,6,7,8,8a-hexahydro-beta,delta-dihydroxy-2,6-dimethyl-1-naphthaleneheptanoic acid ammonium salt
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