D,L-2-Amino-4-(2-aminoethoxy)-trans-but-3-enoic acid derivatives
    3.
    发明授权
    D,L-2-Amino-4-(2-aminoethoxy)-trans-but-3-enoic acid derivatives 失效
    D,L-2-氨基-4-(2-氨基乙氧基) - 异丁烯-3-烯酸衍生物

    公开(公告)号:US4238622A

    公开(公告)日:1980-12-09

    申请号:US824371

    申请日:1977-08-15

    IPC分类号: C07D209/48 C07C101/28

    CPC分类号: C07D209/48

    摘要: The amino acid 2-amino-4-(2-aminoethoxy)-trans-but-3-enoic acid can be conveniently prepared via novel intermediates from a 2,2'-disubstituted diethyl ether and a dialkyl N-protected amidomalonate starting material using a multi-step process. Preferred starting materials are bis-2-chloroethyl ether and diethyl acetamidomalonate. The process, in a preferred embodiment, proceeds through the key intermediate ethyl-2-acetamido-4-[2-(2-phthalimido)ethoxy]-but-2-enoate.

    摘要翻译: 氨基酸2-氨基-4-(2-氨基乙氧基) - 反式 - 异丁烯酸可以通过新的中间体从2,2'-二取代的二乙醚和二烷基N-保护的酰亚氨基甲酸酯起始物质方便地制备,使用 一个多步骤的过程。 优选的原料是双-2-氯乙基醚和乙酰氨基丙二酸二乙酯。 在优选实施方案中,该方法通过关键中间体乙基-2-乙酰氨基-4- [2-(2-苯二酰亚氨基)乙氧基] - 丁-2-烯酸酯进行。

    Antibacterial cephalosporin compounds
    4.
    发明授权
    Antibacterial cephalosporin compounds 失效
    抗菌头孢菌素化合物

    公开(公告)号:US5336768A

    公开(公告)日:1994-08-09

    申请号:US197943

    申请日:1988-05-24

    摘要: There are presented antibacterial cephalosporine having broad antimicrobial activity, having the formula ##STR1## wherein R is hydrogen or a carboxylic acid-protecting group: R.sub.1 represents a substituted piperazinyl group of formula ##STR2## or a substituted pyrrolidinylamino group of formula ##STR3## or a substituted pyrrolidinylmethylamino group of formula ##STR4## where the piperazinyl or pyrrolidinyl group may be optionally substituted with one or more lower alkyl groups, and where Q represents a substituted quinolinyl or naphthyridinyl group: R.sub.2 is selected from the group consisting of hydrogen, lower alkoxy, lower alkylthio and amido; R.sub.3 is hydrogen or an acyl group: and m is 0, 1 or 2, but preferably 0; as well as the corresponding readily hydrolyzable esters. pharmaceutically acceptable salts and hydrates of these compounds.

    摘要翻译: 提供具有广泛抗微生物活性的抗菌头孢菌素,其具有式Ⅰ的化合物,其中R是氢或羧酸保护基团:R1代表通式为“IMAGE”的取代的哌嗪基或式IMAMA的取代的吡咯烷基氨基, 或取代的吡咯烷基甲基氨基,其中哌嗪基或吡咯烷基可以任选被一个或多个低级烷基取代,并且其中Q表示取代的喹啉基或萘啶基:R2选自氢,低级 烷氧基,低级烷硫基和酰氨基; R3为氢或酰基,m为0,1或2,但优选为0; 以及相应的易水解酯。 这些化合物的药学上可接受的盐和水合物。

    .beta.-Lactamase inhibitors
    6.
    发明授权
    .beta.-Lactamase inhibitors 失效
    β-内酰胺酶抑制剂

    公开(公告)号:US4393003A

    公开(公告)日:1983-07-12

    申请号:US252106

    申请日:1981-04-08

    CPC分类号: C07D417/12 C07D499/00

    摘要: A .beta.-lactamase inhibitor of the formula ##STR1## and the pharmaceutically acceptable salts thereof are presented. Also presented are intermediates and synthetic processes for the manufacture of the formula I compound.The compound inhibits the activity of enzymes which inactivate certain .beta.lactam antibiotics.

    摘要翻译: 提供了一种具有式I的β-内酰胺酶抑制剂及其药学上可接受的盐。 还提出了用于制备式I化合物的中间体和合成方法。 该化合物抑制某些β-内酰胺抗生素失活的酶的活性。

    Butenoic acid derivatives
    7.
    发明授权
    Butenoic acid derivatives 失效
    丁烯酸衍生物

    公开(公告)号:US4216008A

    公开(公告)日:1980-08-05

    申请号:US908043

    申请日:1978-05-22

    CPC分类号: A01N37/46

    摘要: The present invention is directed to compounds of the formula ##STR1## wherein R.sub.1 is lower alkyl and R.sub.2 is lower alkyl or aryl. Also provided are methods for preparation of these compounds. The compounds of formula I above are useful as plant growth regulants.

    摘要翻译: 本发明涉及下式的化合物,其中R 1是低级烷基,R 2是低级烷基或芳基。 还提供了这些化合物的制备方法。 上述式I化合物可用作植物生长调节剂。

    Penam antibacterial compounds
    8.
    发明授权
    Penam antibacterial compounds 失效
    Penam抗菌化合物

    公开(公告)号:US5159077A

    公开(公告)日:1992-10-27

    申请号:US383783

    申请日:1989-07-21

    摘要: Antibacterial compounds of the formula ##STR1## in which R.sub.1 is a cyclic or secondary acyclic amino group which independently has antibacterial activity:R.sub.2 is hydrogen, lower alkoxy, lower alkylthio or formamido;R.sub.3 is hydrogen or an organic group bonded through carbon, oxygen, sulfur or nitrogen;R.sub.4 is an electronegative acidic group; or R.sub.3 and R.sub.4 together form a heterocycle; andR.sub.5 is a hydrogen or lower alkyl, except when R.sub.3 and R.sub.4 form a heterocycle, in which case R.sub.5 is hydrogen only; and methods of using same.

    摘要翻译: R1是具有独立具有抗菌活性的环状或次级无环氨基的式Ⅰ的抗菌化合物:R2是氢,低级烷氧基,低级烷硫基或甲酰氨基; R3是氢或通过碳,氧,硫或氮键合的有机基团; R4是电负性酸性基团; 或R3和R4一起形成杂环; 并且R 5是氢或低级烷基,除了当R 3和R 4形成杂环时,其中R 5仅为氢; 和使用方法。