【结 构 式】 |
【分子编号】27365 【品名】6,8-dinitro-2H-1,4-benzoxazine-3(4H)-thione 【CA登记号】 |
【 分 子 式 】C8H5N3O5S 【 分 子 量 】255.21092 【元素组成】C 37.65% H 1.97% N 16.46% O 31.35% S 12.56% |
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:(I)The reaction of 6,8-dinitro-2H-1,4-benzoxazine-3(4H)-thione (I) with ethyl carbazate (II) in refluxing ethanol gives 6,8-dinitro-3-(2-ethoxy-carbonyl)hydrazino-2H-1,4-benzoxazine (III), which undergoes ring closure in refluxing o-dichlorobenzene to give the title compound.
【1】 Shridhar, D.R.; Potential diuretics. Part I. Synthesis of some substituted 2,4-dihydro-1-oxo/thioxo-1,2,4-triazolo[3,4-c][1,4]benzoxazines - Novel diuretic agents. Indian J Chem 1984, 238, 1279. |
【2】 Shridhar, D.R.; Arya, V.P.; IDPH-8032. Drugs Fut 1985, 10, 7, 559. |
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