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    制备喹啉酮衍生物的方法

    公开(公告)号:KR1019900002054B1

    公开(公告)日:1990-03-31

    申请号:KR1019870003977

    申请日:1987-04-24

    Abstract: R=H,Me,Et,Pr,Bt; R1=Cl, piperazinyl) are prepd. by cyclization of II by adding diazomethane in the presence of catalytic amount of metal salt (III) and nonpolar solvent (IV). The III is one of Cu,Pd,Ro,Pt,Mo, and IV is the mixt. of ether, dimethylene chloride and diisopropyl ether or ether and dimethylene chloride. Thus 10g ethyl-6-fluoro-7-chloro1,4-dihydro-4- oxoquinoline-3-carboxylate and 1.49g sodium hydride in 50ml formamide are stirred for 1 hr followed by reacting with 6.37g 1-bromo-2- chloroethane at 110≦̸C for 3 hr to give 10.5g I (R=C2H5, R1=Cl).

    Abstract translation: R = H,Me中,乙基,丙基,BT; R1 = Cl,哌嗪基)制备。 通过在催化量的金属盐(III)和非极性溶剂(IV)的存在下加入重氮甲烷使II环化。 III是Cu,Pd,Ro,Pt,Mo和IV之一是混合物。 的醚,二氯甲烷和二异丙基醚或醚和二氯甲烷。 将10g甲基-6-氟-7-氯-1,4-二氢-4-氧代喹啉-3-羧酸甲酯和1.49g氢化钠的50ml甲酰胺搅拌1小时,随后与6.37g 1-溴-2-氯乙烷反应, 110℃和3小时,得到10.5g I(R = C 2 H 5,R 1 = Cl)。

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