A procedure for the preparation diazohidroxidos pyrazine.

• 1. 1,2,3-三氮唑并1,5-a吡嗪类衍生物的晶型及其制备方法 [P] . 中国专利： CN113227096A . 2021-08-06
• 2. 一种2,3,6-三取代吡嗪氮氧类化合物的制备方法 [P] . 中国专利： CN110372613B . 2020.09.04
• 3. A procedure for preparing a Salt of alkali metal or Alkaline Earth cianopiridin - 2 - 5 - diazohidroxido [P] . ES8700238A1 . 1987-01-01

  机译： 一种制备碱金属盐或碱土金属钢琴蛇毒素-2-5-重氮基己酮的盐的程序

• 4. "A procedure for preparing 1,2 - dihidropirido (3,4-b) pyrazine. [P] . ES8303408A1 . 1983-05-01

  机译： 制备1，2-二巯基吡啶并（3，4-b）吡嗪的方法。

• 5. Process for the preparation of sildenafil and a compound substituu00ecdo pyrazine. [P] . BR9803911B1 . 2009-05-05

  机译： 西地那非和化合物取代吡嗪的制备方法。

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