发明授权
US5686612A Methods of making ureas and guanidines, including terazosin, prazosin, doxazosin, tiodazosin, trimazosin, quinazosin, and bunazosin (exemplary of 2-substituted quinazoline compounds), and meobentine, and bethanidine and intermediates thereof 失效
制造脲类和胍类的方法,包括特拉唑嗪,哌唑嗪,多沙唑嗪,替沙星,三甲氧唑嗪,喹唑啉和布氮唑嗪(2-取代喹唑啉化合物的示例)和meobentine以及其中间体

Methods of making ureas and guanidines, including terazosin, prazosin,
doxazosin, tiodazosin, trimazosin, quinazosin, and bunazosin (exemplary
of 2-substituted quinazoline compounds), and meobentine, and
bethanidine and intermediates thereof
摘要:
Novel methods for the synthesis of substituted ureas and guanidines including Terazosin, Prazosin, Doxazosin, Tiodazosin, Trimazosin, Quinasin and Bunazosin (exemplary of 2-amino substituted Quinazolines), Meobentine and Bethanidine and novel intermediates suitable for use in such methods of synthesis are taught.
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