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【结 构 式】 
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【分子编号】60603 【品名】1-[4-(methylsulfonyl)phenyl]hydrazine; 4-hydrazinophenyl methyl sulfone 【CA登记号】 |
【 分 子 式 】C7H10N2O2S 【 分 子 量 】186.23468 【元素组成】C 45.15% H 5.41% N 15.04% O 17.18% S 17.22% |
与该中间体有关的原料药合成路线共 1 条
合成路线1
该中间体在本合成路线中的序号：(III)Claisen condensation of acetophenone (I) with diethyl oxalate affords the dioxo ester (II). This is condensed with 4-(methylsulfonyl)phenylhydrazine (III) to form the diaryl pyrazole (IV). Ester group reduction in (IV) by means of LiAlH4 provides alcohol (V), which is converted to the corresponding mesylate (VI) upon treatment with methanesulfonyl chloride and Et3N
| 【1】 Barbey, S.; et al.; Synthesis and activity of a new methoxytetrahydropyran derivative as dual cyclooxygenase-2/5-lipoxygenase inhibitor. Bioorg Med Chem Lett 2002, 12, 5, 779. |
| 中间体序号 | 中间体编号 | 品名 | CAS号 | 分子式 | 供应商 | 用于合成 |
|---|---|---|---|---|---|---|
| (I) | 45337 | C8H8O | 详情 | 详情 | ||
| (II) | 60602 | ethyl 2,4-dioxo-4-phenylbutanoate | C12H12O4 | 详情 | 详情 | |
| (III) | 60603 | 1-[4-(methylsulfonyl)phenyl]hydrazine; 4-hydrazinophenyl methyl sulfone | C7H10N2O2S | 详情 | 详情 | |
| (IV) | 60604 | ethyl 1-[4-(methylsulfonyl)phenyl]-5-phenyl-1H-pyrazole-3-carboxylate | C19H18N2O4S | 详情 | 详情 | |
| (V) | 60605 | {1-[4-(methylsulfonyl)phenyl]-5-phenyl-1H-pyrazol-3-yl}methanol | C17H16N2O3S | 详情 | 详情 | |
| (VI) | 60606 | {1-[4-(methylsulfonyl)phenyl]-5-phenyl-1H-pyrazol-3-yl}methyl methanesulfonate | C18H18N2O5S2 | 详情 | 详情 |
Extended Information