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    • 57. 发明授权
    • Angiotensin-II analogues with antagonizing effects, containing an ester
group in position 8, and a process for the preparation thereof
    • 具有拮抗作用的血管紧张素-II类似物,其含有8位的酯基及其制备方法
    • US4388304A
    • 1983-06-14
    • US225048
    • 1981-01-14
    • Olga NyekiLajos KisfaludyEgon KarpatiLaszlo Szporny
    • Olga NyekiLajos KisfaludyEgon KarpatiLaszlo Szporny
    • C07K7/06A61K38/00A61K38/08A61K38/55A61P9/12C07K7/14A61K37/00C07C103/52
    • C07K7/14A61K38/00Y02P20/55Y10S530/80
    • New octapeptides of the general formula (I),X--Arg--Val--Tyr--Ile--His--Pro--Y--OA (I)whereinX stands for the acyl group of an N-methylamino acid or the acyl group of an aliphatic .alpha.-hydroxy- or .alpha.-aminooxycarboxylic acid,Y is the residue of an aliphatic amino acid, andA is a C.sub.1-5 alkyl group, are prepared so that the protecting groups of a protected octapeptide derivative of the general formula (II),B--X--Arg(C)--Val--Tyr(D)--Ile--His(E)--Pro--Y--OA (II)whereinB is a group removable by acidolysis or catalytic hydrogenation,C is a group for the temporary protection of the guanidino group on the Arg moiety,D is a group for the temporary protection of the aromatic hydroxy group on the Tyr moiety,E is a group for the temporary protection of the imidazole group on the His moiety, andA, X and Y are as defined above,are removed either stepwise or in a single step. If desired, a compound of the general formula (I) is converted into its acid addition salt or pharmaceutically acceptable complex.The new compounds according to the invention possess angiotensin-II antagonizing effects, and can be used in the therapy to diagnose or treat hypertensive states.
    • 通式(I)的新八肽,X-Arg-Val-Tyr-Ile-His-Pro-Y-OA(I)其中X代表N-甲基氨基酸的酰基或脂族 α-羟基或α-氨基氧基羧酸,Y是脂族氨基酸的残基,A是C 1-5烷基,使得通式(II)的保护的八肽衍生物的保护基, BX-Arg(C)-Val-Tyr(D)-Ile-His(E)-Pro-Y-OA(II)其中B是通过酸解或催化氢化除去的基团,C是临时保护的基团 Arg部分的胍基,D为Tyr部分上芳香族羟基的临时保护基,E为His部分上咪唑基的临时保护基团,A,X和Y为 如上所定义的,可以逐步地或单步地去除。 如果需要,将通式(I)的化合物转化为其酸加成盐或药学上可接受的络合物。 根据本发明的新化合物具有血管紧张素-II拮抗作用,可用于诊断或治疗高血压状态的治疗。
    • 59. 发明授权
    • Process for the preparation of 11-bromo-vincaminic acid ester
derivatives and their use in protecting animals against cerebral hypoxy
    • 制备11-溴 - 长春胺酸酯衍生物的方法及其在保护动物免受脑缺氧的作用
    • US4283401A
    • 1981-08-11
    • US56647
    • 1979-07-11
    • Csaba SzantayLajos SzaboGyorgy KalausLajos DancsiTibor KeveEgon KarpatiLaszlo Szporny
    • Csaba SzantayLajos SzaboGyorgy KalausLajos DancsiTibor KeveEgon KarpatiLaszlo Szporny
    • C07D461/00C07D471/22A61K31/55C07D459/00
    • C07D461/00
    • A novel process for preparing 11-bromo-vincaminic acid esters of the general formula ##STR1## wherein R.sup.1 and R.sup.2 each stand independently from each other for a C.sub.1-6 alkyl group, comprising the steps of treating a 1-alkyl-1-alkoxycarbonylethyl-octahydroindolo-quinolisine of the general formula ##STR2## wherein R.sup.2 is as defined above and R.sup.3 stands for a C.sub.1-6 alkyl group, with a brominating agent and treating the resulting isomeric mixture of the bromo-derivatives with an alkaline agent or treating the corresponding 14-oxo-E-homo-eburnane being unsubstituted in ring A with a brominating agent and nitrosating the resulting 11-bromo-14-oxo-E-homo-eburnane of the general formula ##STR3## wherein R.sup.2 is as defined above, then subjecting the resulting 11-bromo-14-oxo-15-hydroxyimino-E-homoeburnanes to deoxyimination and treating the 14,15-dioxo-derivatives obtained with a base in an alcohol of the general formula R.sup.1 OH, wherein R.sup.1 is as defined above.All the intermediate products are novel and exhibit a therapeutical protecting effect against cerebral hypoxy.
    • 一种用于制备通式为“IMAGE”的11-溴 - 长春胺酸酯的新方法,其中R 1和R 2各自独立地为C 1-6烷基独立地包括如下步骤:将1-烷基-1-烷氧基羰基乙基 其中R 2如上所定义,R 3表示C 1-6烷基,与溴化剂反应,并用碱处理所得到的溴代衍生物的异构体混合物或处理 环A中未取代的相应的14-氧代-E-均 - 异丁苯与溴化剂并亚硝化所得的通式为“IMAGE”的11-溴-14-氧代-E-均 - 胡烷,其中R2如上定义, 然后将所得的11-溴代-14-氧代-15-羟基亚氨基-E-高硼烷进行脱氧亚胺化处理,并用在通式为R 1 OH的醇中用碱获得的14,15-二氧代衍生物进行脱氧,其中R1如上定义 。 所有的中间产物都是新颖的,并且对脑缺氧具有治疗保护作用。