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【结 构 式】 
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【分子编号】41424 【品名】1,4-dioxaspiro[4.5]decan-8-one oxime 【CA登记号】 |
【 分 子 式 】C8H13NO3 【 分 子 量 】171.19616 【元素组成】C 56.13% H 7.65% N 8.18% O 28.04% |
合成路线1
该中间体在本合成路线中的序号：(XI)Condensation of pyruvic aldehyde dimethyl acetal (V) with dimethylformamide dimethyl acetal produced enamino ketone (VI). Cyclization of (VI) with thiourea (VII), followed by methylation with iodomethane furnished the (methylsulfanyl)pyrimidine (VIII). Acid hydrolysis of the dimethyl acetal gave rise to aldehyde (IX). Cyclohexanedione monoketal (X) was converted to oxime (XI) and then hydrogenated to give amine (XII). This was condensed with aldehyde (IX) yielding imine (XIII). Reaction of imine (XIII) with sulfonyl isocyanide (IV) gave rise to imidazole (XIV). The methylsulfanyl group of (XIV) was then oxidized to sulfone (XV) employing oxone®. Further displacement of the methylsulfonyl group of (XV) with NaOMe produced the methoxy pyrimidine (XVI). After ketal (XVI) hydrolysis, reduction of the resulting ketone (XVII) with NaBH4 furnished the title alcohol.
| 【1】 Adams, J.L.; Garigipati, R.S.; Sorenson, M.E. (SmithKline Beecham plc); Novel cycloalkyl substd. imidazoles. EP 0889726; JP 2000503304; WO 9725048 . |
| 【2】 Adams, J.L.; Garigipati, R.S. (SmithKline Beecham plc); Novel cycloalkyl substd. imidazoles. EP 0883402; WO 9725047 . |
| 【3】 Boehm, J.C.; Garigipati, R.S.; Adams, J.L. (SmithKline Beecham Corp.); Novel cycloalkyl substd. imidazoles. EP 1019396; WO 9901452 . |
| 中间体序号 | 中间体编号 | 品名 | CAS号 | 分子式 | 供应商 | 用于合成 |
|---|---|---|---|---|---|---|
| (IV) | 25595 | 4-Fluoro-alpha-(4-methylphenylsulfonyl)benzyl isocyanide | C15H12FNO2S | 详情 | 详情 | |
| (V) | 25433 | 1,1-dimethoxyacetone | 6342-56-9 | C5H10O3 | 详情 | 详情 |
| (VI) | 25434 | (E)-4-(dimethylamino)-1,1-dimethoxy-3-buten-2-one | C8H15NO3 | 详情 | 详情 | |
| (VII) | 10180 | Thiourea | 62-56-6 | CH4N2S | 详情 | 详情 |
| (VIII) | 41422 | methoxy[2-(methylsulfanyl)-4-pyrimidinyl]methyl methyl ether; 4-(dimethoxymethyl)-2-(methylsulfanyl)pyrimidine | C8H12N2O2S | 详情 | 详情 | |
| (IX) | 41423 | 2-(methylsulfanyl)-4-pyrimidinecarbaldehyde | C6H6N2OS | 详情 | 详情 | |
| (X) | 11377 | 1,4-Dioxaspiro[4.5]decan-8-one | 4746-97-8 | C8H12O3 | 详情 | 详情 |
| (XI) | 41424 | 1,4-dioxaspiro[4.5]decan-8-one oxime | C8H13NO3 | 详情 | 详情 | |
| (XII) | 41425 | 1,4-dioxaspiro[4.5]dec-8-ylamine; 1,4-dioxaspiro[4.5]decan-8-amine | C8H15NO2 | 详情 | 详情 | |
| (XIII) | 41426 | N-(1,4-dioxaspiro[4.5]dec-8-yl)-N-[(Z)-[2-(methylsulfanyl)-4-pyrimidinyl]methylidene]amine; N-[(Z)-[2-(methylsulfanyl)-4-pyrimidinyl]methylidene]-1,4-dioxaspiro[4.5]decan-8-amine | C14H19N3O2S | 详情 | 详情 | |
| (XIV) | 41427 | 4-[1-(1,4-dioxaspiro[4.5]dec-8-yl)-4-(4-fluorophenyl)-1H-imidazol-5-yl]-2-(methylsulfanyl)pyrimidine; 4-[1-(1,4-dioxaspiro[4.5]dec-8-yl)-4-(4-fluorophenyl)-1H-imidazol-5-yl]-2-pyrimidinyl methyl sulfide | C22H23FN4O2S | 详情 | 详情 | |
| (XV) | 41428 | 4-[1-(1,4-dioxaspiro[4.5]dec-8-yl)-4-(4-fluorophenyl)-1H-imidazol-5-yl]-2-(methylsulfonyl)pyrimidine; 4-[1-(1,4-dioxaspiro[4.5]dec-8-yl)-4-(4-fluorophenyl)-1H-imidazol-5-yl]-2-pyrimidinyl methyl sulfone | C22H23FN4O4S | 详情 | 详情 | |
| (XVI) | 41429 | 4-[1-(1,4-dioxaspiro[4.5]dec-8-yl)-4-(4-fluorophenyl)-1H-imidazol-5-yl]-2-pyrimidinyl methyl ether; 4-[1-(1,4-dioxaspiro[4.5]dec-8-yl)-4-(4-fluorophenyl)-1H-imidazol-5-yl]-2-methoxypyrimidine | C22H23FN4O3 | 详情 | 详情 | |
| (XVII) | 41430 | 4-[4-(4-fluorophenyl)-5-(2-methoxy-4-pyrimidinyl)-1H-imidazol-1-yl]cyclohexanone | C20H19FN4O2 | 详情 | 详情 |