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【结 构 式】

【分子编号】36522

【品名】7-(hydroxymethyl)-2H-1,4-benzoxazin-3(4H)-one

【CA登记号】

【 分 子 式 】C9H9NO3

【 分 子 量 】179.1754

【元素组成】C 60.33% H 5.06% N 7.82% O 26.79%

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:(II)

The reduction of 3-oxo-3,4-dihydro-2H-1,4-benzoxazine-7-carbaldehyde (I) with NaBH4 in methanol gives the corresponding carbinol (II), which is acylated with TsCl in pyridine yielding the tosylate (III). Finally, this compound is condensed with 1-(4-chlorophenyl)piperazine (IV) by means of K2CO3 in refluxing acetonitrile.

1 Brink, W.A.; Wustrow, D.J.; Belliotti, T.R.; et al.; A series of 6- and 7-piperazinyl- and -piperidinylmethylbenzoxazinones with dopamine D4 antagonist activity: Discovery of a potential atypical antipsychotic agent. J Med Chem 1999, 42, 25, 5181.
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) 21039 3-oxo-3,4-dihydro-2H-1,4-benzoxazine-7-carbaldehyde C9H7NO3 详情 详情
(II) 36522 7-(hydroxymethyl)-2H-1,4-benzoxazin-3(4H)-one C9H9NO3 详情 详情
(III) 36523 (3-oxo-3,4-dihydro-2H-1,4-benzoxazin-7-yl)methyl 4-methylbenzenesulfonate C16H15NO5S 详情 详情
(IV) 33593 1-(4-chlorophenyl)piperazine 38869-46-4 C10H13ClN2 详情 详情
Extended Information