Terazosin hydrochloride dihydrate was synthesized from 6,7 dimethoxy 1 H,3H quinazolin 2,4 dione via chlorination, amination, condensation and salt formation in an overall yield of 64.3%.

 
  • 以 6 ;7-二甲氧基 - 1H;3H-喹唑啉 - 2 ;4-二酮为原料 ;经氯化、氨化、缩合、成盐制得盐酸特拉唑嗪 ;总收率6 4.;3%25。
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