发明名称 UN PROCEDIMIENTO PARA LA PREPARACION DE NUEVOS DERIVADOS DE QUINAZOLINA
摘要 <p>For the Contracting States : BE, CH, DE, FR, GB, IT, LI, LU, NL, SE : 1. A quinazoline derivative of formula I see diagramm : EP0021338,P5,F1 in D-form or as the racemate, their tautomers and salts of such compounds with mineral acids. For the Contracting State : AT 1. Process for the manufacture of a quinazoline derivative of formula I see diagramm : EP0021338,P5,F1 in D-form or as the racemate, and their tautomers as well as of salts of such compounds with mineral acids, characterized by a) brominating a compound of formula II see diagramm : EP0021338,P5,F2 in the 7-position, or b) reacting a compound of formula III see diagramm : EP0021338,P5,F3 wherein R is lower-alkyl, with cyanogen bromide, or c) treating a compound of formula IV see diagramm : EP0021338,P5,F4 wherein R has the above significance, with ammonia and isolating an obtained compound of formula I or a tautomer thereof in that form or in the form of a salt with a mineral acid.</p>
申请公布号 ES492573(D0) 申请公布日期 1981.06.01
申请号 ES19730004925 申请日期 1980.06.19
申请人 F.HOFFMAN-LA ROCHE & CIE.S.A. 发明人
分类号 C07D487/04;(IPC1-7):07D487/04;61K31/495;61K31/40 主分类号 C07D487/04
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