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    • 28. 发明授权
    • 7-phenylpyrimido[1,2-alpha][1,4]benzodiazepin-3(5H)-ones
    • 7-苯基嘧啶并[1,2-a] [1,4]苯并二氮杂-3(5H) - 酮
    • US4978753A
    • 1990-12-18
    • US430751
    • 1989-11-02
    • Jacob Szmuszkovicz
    • Jacob Szmuszkovicz
    • C07D487/04
    • C07D487/04
    • A 7-phenylpyrimido[1,2-a][1,4]benzodiazepin-3(5H)-ones of the formula II: ##STR1## wherein R.sub.o is selected from the group consisting of hydrogen, alkyl of 1 to 3 carbon atoms, inclusive, --COOR in which R is alkyl defined as above, ##STR2## in which n is a number of 1 to 4, R.sub.6 and R.sub.7 are hydrogen or alkyl defined as above or together ##STR3## is selected from the group consisting of pyrrolidino, piperidino, morpholino, and 4-methylpiperazino, and --CH.sub.2 OH; wherein R.sub.1 is selected from the group consisting of hydrogen, hydroxy, acetoxy, propionoxy, succinyloxy, and alkyl esters thereof; wherein R.sub.2, R.sub.3, R.sub.4, and R.sub.5 are selected from the group consisting of hydrogen, halogen, nitro, cyano, trifluoromethyl, lower-alkyl, -alkoxy, -alkylthio, -alkylsulfinyl, -alkylsulfonyl, -alkanoylamino and -dialkylamino, are synthesized by condensing a 2-amino-5-phenyl-3H-1,4-benzodiazepine of the formula I ##STR4## with a compound selected from the group consisting of acetylenic compounds of the formulae HC.tbd.C--COOR, ROOC.tbd.C--COOR in which R is alkyl defined above, inclusive, and ##STR5## in which R' is alkyl defined as above or ##STR6## defined as above, to give a compound of formula IIa ##STR7## wherein R.sub.2, R.sub.3, R.sub.4, and R.sub.5 is defined as above, and Ro' is selected from the group consisting of hydrogen, alkyl as defined above, --COOR as defined above, and ##STR8## as defined above. Compounds of formula II wherein R.sub.o is --CH.sub.2 OH are obtained by reducing a compound IIa wherein R.sub.o is --CH.sub.2 OH are obtained by reducing a compound IIa wherein R.sub.o ' is --COOR.The compounds of formula II and their pharmacologically acceptable acid addition salts and N-oxides are useful tranquilizers and sedatives for birds and mammals.
    • 式II的7-苯基嘧啶并[1,2-a] [1,4]苯并二氮杂-3(5H)酮:其中R a选自氢,1至3个碳的烷基 原子,包括其中R是如上定义的烷基的-COOR,其中n是1至4的数,R 6和R 7是氢或如上定义的烷基或一起选自 的吡咯烷子基,哌啶子基,吗啉代和4-甲基哌嗪基,和-CH 2 OH; 其中R1选自氢,羟基,乙酰氧基,丙酰氧基,琥珀酰氧基及其烷基酯; 其中R2,R3,R4和R5选自氢,卤素,硝基,氰基,三氟甲基,低级烷基, - 烷氧基, - 烷硫基, - 烷基亚磺酰基, - 烷基磺酰基, - 烷酰基氨基和 - 二烷基氨基 通过将式I的2-氨基-5-苯基-3H-1,4-苯并二氮杂与选自由下列化合物组成的组中的化合物缩合:式IIICO-COOR,ROOC 3BOND C- COOR,其中R是上述定义的烷基,包括端点的R 1和如上定义的R'或如上定义的,得到式IIa化合物其中R 2,R 3,R 4, 并且R 5如上所定义,并且Ro'选自氢,上述定义的烷基,如上定义的-COOR和如上定义的“IMAGE”。 其中Ro为-CH 2 OH的式II化合物通过还原其中Ro为-CH 2 OH的化合物IIa通过还原其中Ro'为-COOR的化合物IIa获得。 式II化合物及其药理学上可接受的酸加成盐和N-氧化物是用于鸟类和哺乳动物的镇静剂和镇静剂。