Treating pain, inflammation and/or platelet aggregation
    5.
    发明授权
    Treating pain, inflammation and/or platelet aggregation 失效
    治疗疼痛,炎症和/或血小板聚集

    公开(公告)号:US4591596A

    公开(公告)日:1986-05-27

    申请号:US552987

    申请日:1983-11-17

    CPC分类号: C07D263/46 C07D263/48

    摘要: This invention relates to chemical products of general formula ##STR1## wherein R is an amino group, mono or bi-hydroxyalkyl substituted, or a thio group, mono hydroxyalkyl substituted, in which one or more of the available --OH groups have been esterified with acids containing 2 to 18 carbon atoms.It is also described a process for the preparation of said products, which comprises reacting a corresponding starting compound, N or S-hydroxyalkyl substituted, with the chloride or the anhydride of the acid concerned.

    摘要翻译: 本发明涉及通式为“IMAGE”的化学产品,其中R是一个氨基,一个或二个羟基烷基取代的,或一个硫基,被取代的单羟基烷基,其中一个或多个可用的-OH基已被酯化 含有2至18个碳原子的酸。 还描述了制备所述产物的方法,其包括将相应的起始化合物,取代的N或S-羟基烷基与所涉及的酸的氯化物或酸酐反应。

    Preparation of biocompatible materials by immobilization of apyrase
    8.
    发明授权
    Preparation of biocompatible materials by immobilization of apyrase 失效
    通过固定apyrase制备生物相容性材料

    公开(公告)号:US4396716A

    公开(公告)日:1983-08-02

    申请号:US334907

    申请日:1981-12-28

    CPC分类号: C12N11/00 A61L33/0047

    摘要: A prosthetic polymer material is made non-thrombogenic by immobilizing apyrase on its surface. Immobilization is preferably carried out by hydrolytically activating the surface of a polyamide polymer or a polyethylene terphthalate polymer, and treating the hydrolyzed polymer with a solution of cross-linking agent and a solution of apyrase. The apyrase converts adenosine diphosphate to adenosine monophosphate and adenosine whereby the formation of thrombi is inhibited.

    摘要翻译: 辅助聚合物材料通过在其表面上固定apyr酶而制成非血栓形成。 固定化优选通过水解活化聚酰胺聚合物或聚对苯二甲酸乙二醇酯聚合物的表面进行,并用交联剂溶液和脱酰酶溶液处理水解的聚合物。 腺苷二磷酸腺苷二磷酸腺苷转化为腺苷一磷酸和腺苷,从而抑制血栓的形成。

    Method for conditioning fresh and sea waters from oil
    9.
    发明授权
    Method for conditioning fresh and sea waters from oil 失效
    从油中调节新鲜和海水的方法

    公开(公告)号:US4042495A

    公开(公告)日:1977-08-16

    申请号:US630670

    申请日:1975-11-10

    摘要: Oily hydrocarbons which pollute the surface of water are removed therefrom by scattering over the polluted surface solid particles of nutrient salt containing nitrogen and phosphorous in a form that is readily assimilable by aqueous microorganisms capable of metabolizing hydrocarbons. The particles of nutrient salt are given a surface pretreatment with paraffine so that they are buoyant and only slowly soluble in water and lipophilic.

    摘要翻译: 通过在含有氮和磷的营养盐的污染表面固体颗粒上散布易于通过能够代谢烃代谢的含水微生物的形式而将污染水表面的油性碳氢化合物除去。 营养盐颗粒用石蜡进行表面预处理,使其具有浮力,仅缓慢溶于水和亲油。

    Process for producing D(-)mandelic acid
    10.
    发明授权
    Process for producing D(-)mandelic acid 失效
    生产D( - )扁桃酸的方法

    公开(公告)号:US4489208A

    公开(公告)日:1984-12-18

    申请号:US348707

    申请日:1982-02-16

    CPC分类号: C12P13/02

    摘要: This invention relates to a process for the preparation of D(-) mandelic acid by the acid hydrolysis of the corresponding carbamate in an aqueous environment at a temperature of between 40.degree. and 100.degree. C. and at a pH of between 1 and 3.5.The invention also relates to a process for the enzymatic hydrolysis of racemic 5-substituted 2,4-oxazolidinediones to give only one of the two possible optical isomers, i.e., the D-carbamyl-.alpha.-hydroxy acid. The free D-.alpha.-hydroxy acid can be obtained from the optically active carbamyl derivative by simple hydrolysis. Of particular interest is the case in which the D-.alpha.-hydroxy acid is D(-)mandelic acid. The enzymatic activity required for preparing the carbamyl derivative of D(-)mandelic acid has been found both in homogenised veal liver and in a series of microorganisms, including Agrobacterium radiobacter, Bacillus brevis, Bacillus stearothermophilus, Pseudomonas sp., Pseudomonas desmolytica, Pseudomonas fluorescens, Pseudomonas putida.

    摘要翻译: 本发明涉及通过在40〜100℃的温度和1〜3.5之间的酸性水溶液中水解相应的氨基甲酸酯来制备D( - )扁桃酸的方法。 本发明还涉及外消旋的5-取代的2,4-恶唑烷二酮的酶水解方法,以仅给出两种可能的光学异构体之一,即D-氨基甲酰-α-羟基酸。 游离的D-α-羟基酸可以通过简单的水解从光学活性的氨基甲酰基衍生物获得。 特别令人感兴趣的是D-羟基酸是D( - )扁桃酸的情况。 已经在均质的小牛肝脏和一系列微生物中发现制备D( - )扁桃酸的氨基甲酰基衍生物所需的酶活性,包括农杆菌,短芽孢杆菌,嗜热脂肪芽孢杆菌,假单胞菌,解脂假单胞菌(Pseudomonas desmolytica),荧光假单胞菌 ,恶臭假单胞菌(Pseudomonas putida)。