Preparation of (cyanofluoromethyl)-phosphonates
    1.
    发明授权
    Preparation of (cyanofluoromethyl)-phosphonates 失效
    (氰基氟甲基) - 膦酸酯的制备

    公开(公告)号:US5142085A

    公开(公告)日:1992-08-25

    申请号:US743859

    申请日:1991-08-12

    IPC分类号: C07F9/40

    CPC分类号: C07F9/4006

    摘要: A process for the preparation of a compound of the formula ##STR1## wherein alk.sub.1 and alk.sub.2 are individually alkyl of 1 to 8 carbon atoms comprising reacting a compound of the formula ##STR2## with a dehydrating agent to obtain the corresponding compound of formula I.

    摘要翻译: 一种制备下式化合物的方法,其中alk1和alk2是1-8个碳原子的烷基,包括使式II的化合物与脱水剂反应,得到相应的式 一世。

    Erythromycin derivatives, a process for their preparation and their use as medicaments
    2.
    发明授权
    Erythromycin derivatives, a process for their preparation and their use as medicaments 有权
    红霉素衍生物,其制备方法及其用作药物

    公开(公告)号:US06433151B1

    公开(公告)日:2002-08-13

    申请号:US09350224

    申请日:1999-07-08

    IPC分类号: C07H1708

    CPC分类号: C07H17/08

    摘要: The invention relates to compounds of the formula (I) in which R represents a radical (CH2)mOn(X)YAr  in which m represents the number 0 or 1, n represents the number 0 or 1, X represents a radical (NH)a, CH2 or SO2, where a represents the number 0 or 1, Y represents a radical (CH2)b—(CH═CH)c—(CH2)d, where c=0 or 1 and b+c+d ≦8, Z represents a hydrogen or halogen atom, Ar represents an optionally substituted aryl or heteroaryl radical and W represents a hydrogen atom or an acyl radical, and their acid addition salts. The compounds of the formula (1) have antibiotic properties.

    摘要翻译: 本发明涉及式(I)化合物,其中R表示基团,其中m表示数字0或1,n表示数字0或1,X表示基团(NH)a,CH 2或SO 2,其中a表示 数字0或1,Y表示基团(CH 2)b - (CH = CH)c - (CH 2)d,其中c = 0或1,b + c + d <= 8,Z表示氢或卤素原子 ,Ar表示任选取代的芳基或杂芳基,W表示氢原子或酰基,以及它们的酸加成盐。式(1)化合物具有抗生素特性。

    Resolution of D,L-cis and D,L-trans
2,2-dimethyl-3-(2,2-dihalovinyl)-cyclopropane-1-carboxylic acids and
salts thereof
    4.
    发明授权
    Resolution of D,L-cis and D,L-trans 2,2-dimethyl-3-(2,2-dihalovinyl)-cyclopropane-1-carboxylic acids and salts thereof 失效
    拆分D,L-顺式和D,L-反式2,2-二甲基-3-(2,2-二卤代乙烯基) - 环丙烷-1-羧酸及其盐

    公开(公告)号:US4328173A

    公开(公告)日:1982-05-04

    申请号:US130994

    申请日:1980-03-17

    CPC分类号: C07C51/487

    摘要: A novel process for the resolution of D,L-cis and D,L-trans 2,2-dimethyl-3-(2,2 -dihalovinyl)-cyclopropane-1-carboxylic acids of the formula ##STR1## wherein X is selected from the group consisting of fluorine, chlorine and bromine comprising salifying the said acid with an optically active base selected from the group consisting of D-ephedrine, L-ephedrine, D-N-methyl-ephedrine, L-N-methylephedrine, D-pseudo-ephedrine and L-pseudo-ephedrine to form the corresponding salt, recovering the said salt and subjecting the latter to acid hydrolysis to obtain the corresponding resolved acid which are intermediates for the synthesis of esters having a remarkable insecticidal activity.

    摘要翻译: 用于拆分式I的D,L-顺式和D,L-反式2,2-二甲基-3-(2,2-二卤乙烯基) - 环丙烷-1-羧酸的新方法,其中X为 选自氟,氯和溴,其包括用选自D-麻黄碱,L-麻黄碱,DN-甲基麻黄碱,LN-甲基麻黄碱,D-假麻黄素的光学活性碱使所述酸成盐 和L-假麻黄碱形成相应的盐,回收所述盐并使其进行酸水解,得到相应的分解酸,其是合成具有显着杀虫活性的酯的中间体。