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CAS 674-82-8
4-methyleneoxetan-2-one3-Hydroxy 3-butenoic acid beta-lactone4-Methylene-2-oxetanone
Codes：PALB-037、(II)638294-21-a、Atorvastatin-136、SUNT-001
Application context (from source-drug indications)
乳腺癌哌柏西利收缩性心力衰竭非奈利酮舒张期心力衰竭非奈利酮心脏衰竭非奈利酮慢性肾功能不全非奈利酮糖尿病肾病非奈利酮二型糖尿病非奈利酮高脂血症阿托伐他汀锶蛛网膜下腔出血阿托伐他汀锶高血压阿托伐他汀锶胰腺神经内分泌肿瘤苹果酸舒尼替尼肾细胞癌苹果酸舒尼替尼胃肠道间质瘤苹果酸舒尼替尼骨肉瘤苹果酸舒尼替尼肉瘤苹果酸舒尼替尼淋巴瘤苹果酸舒尼替尼
Source drugs (routes using this intermediate)
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.
cyclopentanamine→tert-butyl 4-(6-aminopyridin-3-yl)piperazine-1-carboxylate→2,4-dichloropyrimidine-5-carbonitrile→1-(2,4-dichloropyrimidin-5-yl)ethanone→2,4-dichloro-5-(2-methyl-1,3-dioxolan-2-yl)pyrimidine→1-(2-chloro-4-(cyclopentylamino)pyrimidin-5-yl)ethanone→4-methyleneoxetan-2-one→N-(5-acetyl-2-chloropyrimidin-4-yl)-N-cyclopentyl-3-oxobutanamide→6-acetyl-2-chloro-8-cyclopentyl-5-methylpyrido[2,3-d]pyrimidin-7(8H)-one→2-chloro-8-cyclopentyl-5-methyl-6-(2-methyl-1,3-dioxolan-2-yl)pyrido[2,3-d]pyrimidin-7(8H)-one→tert-butyl 4-(6-((8-cyclopentyl-5-methyl-6-(2-methyl-1,3-dioxolan-2-yl)-7-oxo-7,8-dihydropyrido[2,3-d]pyrimidin-2-yl)amino)pyridin-3-yl)piperazine-1-carboxylate
(R)-4-(Phenylmethyl)-2-oxazolidinone→3-Hydroxy 3-butenoic acid beta-lactone→1-[(4R)-4-Benzyl-2-oxo-1,3-oxazolidin-3-yl]butane-1,3-dione→2-Methoxy-4-cyanobenzaldehyde→4-[2-[(4R)-4-Benzyl-2-oxo-1,3-oxazolidine-3-carbonyl]-3-oxobut-1-en-1-yl]-3-methoxybenzonitrile→4-Amino-5-methylpyridin-2(1H)-one→4-[3-[(4R)-4-Benzyl-2-oxo-1,3-oxazolidine-3-carbonyl]-2,8-dimethyl-5-oxo-1,4,5,6-tetrahydro-1,6-naphthyridin-4-yl]-3-methoxybenzonitrile→4-[(4S)-3-[(4R)-4-Benzyl-2-oxo-1,3-oxazolidine-3-carbonyl]-2,8-dimethyl-5-oxo-1,4,5,6-tetrahydro-1,6-naphthyridin-4-yl]-3-methoxybenzonitrile→1,1,1-Triethoxyethane→4-[(4S)-3-[(4R)-4-Benzyl-2-oxo-1,3-oxazolidine-3-carbonyl]-5-ethoxy-2,8-dimethyl-1,4-dihydro-1,6-naphthyridin-4-yl]-3-methoxybenzonitrile
1,4-Epoxy-1,3-butadiene→(2E)-1,1,4,4-Tetramethoxybut-2-ene→2,2-Dimethoxyacetaldehyde→Nitrocarbol→tert-Butyl 4-bromo-3-oxobutanoate→1,1-Dimethoxy-3-nitropropan-2-ol→(1E)-3,3-Dimethoxy-1-nitroprop-1-ene→(2E)-3-Nitroprop-2-enal→Bromido(4-tert-butoxy-2,4-dioxobutyl)zinc→tert-Butyl (5S,6E)-5-hydroxy-7-nitro-3-oxohept-6-enoate→4-Methylene-2-oxetanone→tert-Butyl (3R,5S,6E)-3,5-dihydroxy-7-nitrohept-6-enoate→2-Propanone→tert-Butyl [(4R,6S)-2,2-dimethyl-6-[(E)-2-nitroethenyl]-1,3-dioxan-4-yl]acetate→(4R,6R)-6-(2-Aminoethyl)-2,2-dimethyl-1,3-Dioxane-4-acetic acid 1,1-dimethylethyl ester
4-methyleneoxetan-2-one→N1,N1-diethylethane-1,2-diamine→N-(2-(diethylamino)ethyl)-3-oxobutanamide→tert-butyl 3-oxobutanoate→tert-butyl 4-((2-(diethylamino)ethyl)carbamoyl)-3,5-dimethyl-1H-pyrrole-2-carboxylate→N-(2-(diethylamino)ethyl)-2,4-dimethyl-1H-pyrrole-3-carboxamide→N-(chloromethylene)-N-methylmethanaminium chloride→N-(2-(diethylamino)ethyl)-5-formyl-2,4-dimethyl-1H-pyrrole-3-carboxamide→5-fluoroindolin-2-one→(S)-2-hydroxysuccinic acid
Intermediates available on this site
Side-by-side comparison of all listed offers on this CAS; price bands are list-price ranges, final price subject to RFQ confirmation.
| Supplier | Product | Price band | MOQ | Lead time | Qualifications |
|---|---|---|---|---|---|
| Unibest Nantong cGMP Site | 4-Bromo-2-methoxybenzaldehyde Pharmaceutical Intermediates | 询价 | 询价 | 询价 | — |
| Unibest Taizhou GMP-like Site | 4-formyl-3-methoxybenzonitrile Pharmaceutical Intermediates | 询价 | 询价 | 询价 | — |
| Qualified Partner — East China API Works | 4-AMino-5-Methylpyridin-2-ol Pharmaceutical Intermediates | 询价 | 询价 | 询价 | — |
| Unibest Nantong cGMP Site | 2-chloro-5-methylpyridin-4-amine Pharmaceutical Intermediates | 询价 | 询价 | 询价 | — |
| Unibest Taizhou GMP-like Site | 2-Cyanoethyl 3-oxobutanoate Pharmaceutical Intermediates | 询价 | 询价 | 询价 | — |
| Qualified Partner — East China API Works | 2-cyanoethyl 4-(4-cyano-2-methoxyphenyl)-2,8-dimethyl-5-oxo-1,4,5,6-tetrahydro-1,6-naphthyridine-3-carboxylate Pharmaceutical Intermediates | 询价 | 询价 | 询价 | — |
| Qualified Partner — East China API Works | 5-broMo-2-chloro-N-cyclopentylpyriMidin-4-aMine Pharmaceutical Intermediates | 询价 | 询价 | 询价 | — |
| Unibest Nantong cGMP Site | 2-chloro-8-cyclopentyl-5-Methylpyrido[2,3-d]pyriMidin-7(8H)-one Pharmaceutical Intermediates | 询价 | 询价 | 询价 | — |
| Unibest Taizhou GMP-like Site | 6-broMo-2-chloro-8-cyclopentyl-5-Methylpyrido[2,3-d]pyriMidin-7(8H)-one Pharmaceutical Intermediates | 询价 | 询价 | 询价 | — |
| Qualified Partner — East China API Works | tert-Butyl 4-(6-aminopyridin-3-yl)piperazine-1-carboxylate Pharmaceutical Intermediates | 询价 | 询价 | 询价 | — |
| Unibest Nantong cGMP Site | Tert-butyl 4-(6-nitropyridin-3-yl)piperazine-1-carboxylate Pharmaceutical Intermediates | 询价 | 询价 | 询价 | — |
| Unibest Taizhou GMP-like Site | tert-Butyl 4-(6-((6-(1-butoxyvinyl)-8-cyclopentyl-5-methyl-7-oxo-7,8-dihydropyrido[2,3-d]pyrimidin-2-yl)amino)pyridin-3-yl)piperazine-1-carboxylate Pharmaceutical Intermediates | 询价 | 询价 | 询价 | — |
| Qualified Partner — East China API Works | PD 0332991 HCl Pharmaceutical Intermediates | 询价 | 询价 | 询价 | — |
| Qualified Partner — East China API Works | 5-Fluoro-2-oxindole Pharmaceutical Intermediates | 询价 | 询价 | 询价 | — |
| Unibest Nantong cGMP Site | 5-Formyl-2,4-dimethyl-1H-pyrrole-3-carboxylic acid Pharmaceutical Intermediates | 询价 | 询价 | 询价 | — |
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.