← Back to patent-cliff list
CAS 3891-07-4
N-(2-Hydroxyethyl)phthalimideN-Hydroxyethylphthalimide2-(2-Hydroxyethyl)-1H-isoindole-1,3(2H)-dione
Codes: (III)109067-2-a, Levamlodipine Besylate-021, (II)109067-10-a
Application context (from source-drug indications)
HypertensionOlmesartan Medoxomil/Amlodipine orotateEssential hypertensionValsartan/Amlodipine OrotateHypertensionLevamlodipine BesylateAngina pectorisLevamlodipine BesylateEssential hypertensionLevamlodipine BesylateVariant anginaAmlodipine OrotateHypertensionAmlodipine OrotateIschaemic heart diseaseAmlodipine OrotateStable anginaAmlodipine OrotateHypertensionAmlodipine CamsylateHypertensionAmlodipine MaleateAngina pectorisAmlodipine MaleateChronic renal impairmentAmlodipine Maleate肾性高血压Amlodipine MaleateHeart diseaseAmlodipine Maleate血管疾病Amlodipine Maleate
Source drugs (routes using this intermediate)
| Drug | Tier | Expiry |
|---|---|---|
| Olmesartan Medoxomil/Amlodipine orotate | Tier C — Watch / trade | - |
| Valsartan/Amlodipine Orotate | Tier C — Watch / trade | - |
| Levamlodipine Besylate | Tier C — Watch / trade | - |
| Amlodipine Orotate | Tier C — Watch / trade | - |
| Amlodipine Camsylate | Tier C — Watch / trade | - |
| Amlodipine Maleate | 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.
Ethyl 4-chloro-3-oxobutanoate→Ethyl 4-[(4-methylbenzene-1-sulfonyl)oxy]-3-oxobutanoate→N-(2-Hydroxyethyl)phthalimide→Ethyl 4-(2-phthalimidoethoxy)acetoacetate→Ethyl (2Z)-3-amino-4-[2-(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)ethoxy]but-2-enoate→Methyl (2Z)-2-[(2-chlorophenyl)methylidene]-3-oxobutanoate→3-Ethyl 5-methyl (4RS)-4-(2-chlorophenyl)-2-[[2-(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)ethoxy]methyl]-6-methyl-1,4-dihydropyridine-3,5-dicarboxylate
Ethyl 4-chloro-3-oxobutanoate→Ethyl 4-[(4-methylbenzene-1-sulfonyl)oxy]-3-oxobutanoate→N-(2-Hydroxyethyl)phthalimide→Ethyl 4-(2-phthalimidoethoxy)acetoacetate→Ethyl (2Z)-3-amino-4-[2-(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)ethoxy]but-2-enoate→Methyl (2Z)-2-[(2-chlorophenyl)methylidene]-3-oxobutanoate→3-Ethyl 5-methyl (4RS)-4-(2-chlorophenyl)-2-[[2-(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)ethoxy]methyl]-6-methyl-1,4-dihydropyridine-3,5-dicarboxylate
3,5-Pyridinedicarboxylic acid, 1,4-dihydro-2,6-dimethyl-, 3-ethyl 5-methyl ester→3-ethyl 5-methyl 4-bromo-2-(bromomethyl)-6-methyl-1,4-dihydropyridine-3,5-dicarboxylate→N-Hydroxyethylphthalimide→3-ethyl 5-methyl 4-bromo-2-((2-(1,3-dioxoisoindolin-2-yl)ethoxy)methyl)-6-methyl-1,4-dihydropyridine-3,5-dicarboxylate→2-Chlorophenylboronic acid→Phthaloyl amlodipine→(±)-2-(2-Aminoethoxymethyl)-4-(2-chlorophenyl)-3-ethoxycarbonyl-5-methoxycarbonyl-6-methyl-1,4-dihydropyridine
Ethyl 4-chloro-3-oxobutanoate→Ethyl 4-[(4-methylbenzene-1-sulfonyl)oxy]-3-oxobutanoate→N-(2-Hydroxyethyl)phthalimide→Ethyl 4-(2-phthalimidoethoxy)acetoacetate→Ethyl (2Z)-3-amino-4-[2-(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)ethoxy]but-2-enoate→Methyl (2Z)-2-[(2-chlorophenyl)methylidene]-3-oxobutanoate→3-Ethyl 5-methyl (4RS)-4-(2-chlorophenyl)-2-[[2-(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)ethoxy]methyl]-6-methyl-1,4-dihydropyridine-3,5-dicarboxylate
Ethyl 4-chloro-3-oxobutanoate→Ethyl 4-[(4-methylbenzene-1-sulfonyl)oxy]-3-oxobutanoate→N-(2-Hydroxyethyl)phthalimide→Ethyl 4-(2-phthalimidoethoxy)acetoacetate→Ethyl (2Z)-3-amino-4-[2-(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)ethoxy]but-2-enoate→Methyl (2Z)-2-[(2-chlorophenyl)methylidene]-3-oxobutanoate→3-Ethyl 5-methyl (4RS)-4-(2-chlorophenyl)-2-[[2-(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)ethoxy]methyl]-6-methyl-1,4-dihydropyridine-3,5-dicarboxylate
2-Aminoethyl alcohol→2-Chloroethanol→2-(2-Hydroxyethyl)-1H-isoindole-1,3(2H)-dione→Ethyl 4-chloro-3-oxobutanoate→Ethyl 4-bromoacetoacetate→Ethyl 4-(2-phthalimidoethoxy)acetoacetate→2-Chlorobenzaldehyde→2-(2-Chlorobenzylidene)-4-(2-phthalimidoethoxy)acetoacetic acid ethyl ester→3-Amino-2-butenoic acid methyl ester→3-Ethyl 5-methyl (4RS)-4-(2-chlorophenyl)-2-[[2-(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)ethoxy]methyl]-6-methyl-1,4-dihydropyridine-3,5-dicarboxylate→3-Ethyl 5-methyl 2-((2-aminoethoxy)methyl)-4-(2-chlorophenyl)-6-methyl-1,4-dihydropyridine-3,5-dicarboxylate
2-Aminoethyl alcohol→2-Chloroethanol→2-(2-Hydroxyethyl)-1H-isoindole-1,3(2H)-dione→Ethyl 4-chloro-3-oxobutanoate→Ethyl 4-bromoacetoacetate→Ethyl 4-(2-phthalimidoethoxy)acetoacetate→2-Chlorobenzaldehyde→2-(2-Chlorobenzylidene)-4-(2-phthalimidoethoxy)acetoacetic acid ethyl ester→3-Amino-2-butenoic acid methyl ester→3-Ethyl 5-methyl (4RS)-4-(2-chlorophenyl)-2-[[2-(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)ethoxy]methyl]-6-methyl-1,4-dihydropyridine-3,5-dicarboxylate→3-Ethyl 5-methyl 2-((2-aminoethoxy)methyl)-4-(2-chlorophenyl)-6-methyl-1,4-dihydropyridine-3,5-dicarboxylate
Intermediates available on this site
No listed intermediates for this target yet — send an RFQ directly and it will enter our matching pool.
This is a CAS-level registry record: registrations across routes are merged. Supplier offers and buyer demands will be matched on this CAS as the primary key.