5-arylalkyl-4-alkoxy-2(5H)-furanones, intermediates and processes for
the preparation thereof and medicaments containing them
    184.
    发明授权
    5-arylalkyl-4-alkoxy-2(5H)-furanones, intermediates and processes for the preparation thereof and medicaments containing them 失效
    5-芳基烷基-4-烷氧基-2(5H) - 呋喃酮,其制备方法及其制备方法和含有它们的药物

    公开(公告)号:US4855320A

    公开(公告)日:1989-08-08

    申请号:US46586

    申请日:1987-05-04

    CPC classification number: C07C59/64 C07D307/60

    Abstract: The present invention provides 5-arylalkyl-4-alkoxy-2(5H)-furanones of the formula: ##STR1## wherein the oxygen atoms on C-5 and C-.alpha., relative to one another, are in the threo-position, with the exclusion of those compounds of the formula (I) wherein R.sup.2 is H or CH.sub.3 when n=0 or 2, R.sup.o =H, R.sup.1 =CH.sub.3, R.sup.3 =H and R.sup.4 =H.The present invention also provides processes for their preparation, as well as new 3-alkoxy-5-(subst.)-phenyl-2(E), 4(E)-pentadienoates as reactive intermediates for the preparation of the new furanone derivatives.The new furanone derivatives of the threo series are active as anticonvulsives/anti-epileptics. Therefore, the present invention also provides medicaments which contain these new furanone derivatives, as well as known furanones, the anticonvulsive/anti-epileptic effectiveness of which has been found for the first time.

    Abstract translation: 本发明提供下式的5-芳基烷基-4-烷氧基-2(5H) - 呋喃酮:其中C-5和C-α上的氧原子相对于彼此处于苏打 位置,排除那些当n = 0或2时R 2为H或CH 3的式(I)化合物,Ro = H,R 1 = CH 3,R 3 = H和R 4 = H。 本发明还提供其制备方法,以及作为制备新的呋喃酮衍生物的反应中间体的新的3-烷氧基-5-(低级) - 苯基-2(E),4(E) - 戊二酸二乙酯。 苏氨酸系列的新呋喃酮衍生物作为抗惊厥药/抗癫痫药物是有活性的。 因此,本发明还提供含有这些新的呋喃酮衍生物的药物以及已知的呋喃酮,其首次发现其抗惊厥/抗癫痫效果。

    Dispirotetradecanes
    185.
    发明授权

    公开(公告)号:US4853151A

    公开(公告)日:1989-08-01

    申请号:US112356

    申请日:1987-08-11

    Abstract: Dispirotetradecanes of the formula I ##STR1## wherein R.sup.1 and R.sup.2 are each independently of each other alkyl containing 1 to 12 carbon atoms wherein one or more non-adjacent CH.sub.2 groups may also be replaced by --O--, --CO--, --CO--O--, --O--CO--, --O--COO-- and/or --CH.dbd.CH-- (trans), one of the radicals R.sup.1 and R.sup.2 also being H, F, Cl, Br, I, CN, NO.sub.2, NCS,A.sup.1 and A.sup.2 are each independently of each other trans-1,4-cyclohexylene wherein one or two non-adjacent CH.sub.2 groups may be replaced by --O-- and/or --S--, or 1,4-phenylene wherein one or more CH groups may also be replaced by N, with it also being possible optionally for A.sup.1 and A.sup.2 to be substituted laterally or axially by F, Cl, CN, CH.sub.3,Z.sup.1 and Z.sup.2 are each independently of each other --C--O--, --O--CO--, --CH.sub.2 CH.sub.2 --, --CH.sub.2 O--, --OCH.sub.2 -- or a single bond,m and n are each 0, 1 or 2,(m+n) 0, 1 or 2,X.sup.1, X.sup.2, X.sup.3 and X.sup.4 are each independently of each other H, F, Cl or CN, and one or both of the groups CX.sup.1 X.sup.2 and CX.sup.3 X.sup.4 may also be C.dbd.O, may be used as components of liquid-crystalline phases.

    Abstract translation: PCT No.PCT / EP86 / 00722 Sec。 371日期1987年8月11日 102(e)日期1987年8月11日PCT提交1986年12月8日PCT公布。 公开号WO87 / 03581 日期:1987年6月18日。式I的对映异十四烷酮其中R 1和R 2各自独立地为彼此具有1至12个碳原子的烷基,其中一个或多个不相邻的CH 2基团也可被-O- ,-CO-,-CO-O-,-O-CO-,-O-COO-和/或-CH = CH-(反式),基团R1和R2之一也是H,F,Cl,Br ,I,CN,NO 2,NCS,A 1和A 2各自独立地为彼此反式-1,4-亚环己基,其中一个或两个不相邻的CH 2基可以被-O-和/或-S-或1 其中一个或多个CH基团也可以被N代替的4-亚苯基,也可以任选地使A1和A2被F,B,CN,CH 3,Z 1和Z 2各自独立地取代为横向或轴向被F,Cl,CN, 其它-CO-,-O-CO-,-CH2CH2-,-CH2O-,-OCH2-或单键,m和n分别为0,1或2,(m + n)0,1或2,X1 ,X2,X3和X4各自独立地为H,F,Cl或CN,并且基团CX1X2和CX3X4中的一个或两个也可以是C = O,可以用作组分 的液晶相。

    Process for the preparation of 2,4-dinitrophenyl ethers
    186.
    发明授权
    Process for the preparation of 2,4-dinitrophenyl ethers 失效
    2,4-二硝基苯醚的制备方法

    公开(公告)号:US4847426A

    公开(公告)日:1989-07-11

    申请号:US198285

    申请日:1988-05-25

    CPC classification number: C07C201/12

    Abstract: A process for the preparation of 2,4-dinitrophenyl ethers of the general formula (1) ##STR1## in which R denotes an alkyl(C.sub.1 -C.sub.6) or alkoxy(C.sub.1 -C.sub.4)alky(C.sub.1 -C.sub.4) group by reacting 1 mole of 2,4-dinitrochlorobenzene in the anhydrous alcohol which is required for the ether formation and is of the general formula (2)R--OH (2)in which R has the abovementioned meaning, in the presence of 1.0 to 3.0 mole of an anhydrous alkali metal carbonate, at temperatures of 20.degree. C. to 150.degree. C., where appropriate under pressure.

    Abstract translation: 一种制备通式(1)的2,4-二硝基苯基醚的方法,其中R表示烷基(C1-C6)或烷氧基(C1-C4)烷基(C1-C4)基团 通过使1摩尔2,4-二硝基氯苯在醚形成所需的无水醇中反应,并具有通式(2)R-OH(2),其中R具有上述含义,在1.0〜 3.0摩尔无水碱金属碳酸盐,温度为20℃至150℃,适当时在压力下。

    Process for the preparation of 4-nitrophenetol
    190.
    发明授权
    Process for the preparation of 4-nitrophenetol 失效
    制备4-硝基苯甲酸的方法

    公开(公告)号:US4782190A

    公开(公告)日:1988-11-01

    申请号:US22834

    申请日:1987-03-06

    CPC classification number: C07C201/12

    Abstract: 4-Nitrophenetol is prepared by reaction of 4-chloronitrobenzene with ethanol and alkali metal hydroxides in the presence of phase-transfer catalysts by carrying out the reaction at temperatures from 60.degree. to 95.degree. C. and under pressure in the presence of oxygen-containing gases diluted with inert gases, there being at the start of the reaction 0.2 to 1.0 mol of alkali metal hydroxide metered each hour into the reaction mixture for each 1 mol of 4-chloronitrobenzene.

    Abstract translation: 通过在相转移催化剂的存在下通过4-氯硝基苯与乙醇和碱金属氢氧化物的反应制备4-硝基苯并吡喃,通过在60-95℃的温度和在含氧的 用惰性气体稀释的气体,在反应开始时,每1小时向反应混合物中计量0.2至1.0摩尔碱金属氢氧化物,每1摩尔4-氯硝基苯。

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