摘要:
A series of ethers and thioethers of 5-methanol thiohydantoins, unsubstituted at the number one position heterocyclic nitrogen atom of the thiohydantoin ring, useful in reversing the effects of collagen and ADP-induced platelet aggregation.
摘要:
3-Amino-N-substituted succinamic acids, prepared by coupling of a protected L-aspartic acid derivative with the appropriate amine followed by cleavage of the protecting groups, are potent sweetening agents and also exhibit pharmacological, e.g. anti-inflammatory, properties.
摘要:
This invention encompasses novel tetrapeptide amides and their intermediates containing an L-aspartic acid residue. These peptides are inhibitors of gastric acid secretion and therefore useful in the treatment of ulcers.
摘要:
Octapeptide derivatives characterized by an oxygen or sulfur-containing moiety in the C-terminal position are potent inhibitors of the pharmacological effects of Angiotensin and possess the additional advantage of a favorable antagonist/agonist ratio.
摘要:
The invention relates to novel substituted tyrosyl alanine dipeptide amides of the formula: ##STR1## and the pharmaceutically acceptable acid addition salts thereof wherein R.sub.1 represents straight or branched lower alkyl having 1 to 4 carbons;R.sub.2 represents hydrogen, hydroxy, --OCO.sub.2 R.sub.1 substituent or lower alkyl having 1 to 4 carbons;R.sub.3 represents a hydrogen or lower alkyl having 1 to 6 carbons;R.sub.4 and R.sub.5 may be the same or different and represent hydrogen or lower alkyl having 1 to 6 carbons;n is 1 to 6;X represents a hydrogen, hydroxy or OCO.sub.2 R.sub.1 substituent;A represents a cyclohexyl, phenyl or phenyl substituted with one or more lower alkyls containing 1 to 6 carbons, one or more amino, hydroxy, halogen, nitro or lower alkoxy substituent having 1 to 6 carbons;V represents the asymmetric carbon that may be racemic or have the D or L configuration;W represents the asymmetric carbon when R.sub.4 and R.sub.5 are not the same that may optionally be racemic or have the D or L configuration.These compounds are useful as analgesic and/or antihypertensive agents.
摘要翻译:本发明涉及下式的新型取代的酪氨酰丙氨酸二肽酰胺及其药学上可接受的酸加成盐,其中R1代表具有1-4个碳原子的直链或支链低级烷基; R2代表氢,羟基,-OCO2R1取代基或具有1至4个碳原子的低级烷基; R3表示氢或具有1至6个碳的低级烷基; R 4和R 5可以相同或不同,表示氢或具有1至6个碳的低级烷基; n为1至6; X表示氢,羟基或OCO 2 R 1取代基; A表示被一个或多个含有1至6个碳的低级烷基,一个或多个具有1-6个碳原子的氨基,羟基,卤素,硝基或低级烷氧基取代基取代的苯基或苯基; V表示可以是外消旋或具有D或L构型的不对称碳; 当R4和R5不相同时,W表示不对称碳,其可任选地是外消旋的或具有D或L构型。 这些化合物可用作止痛剂和/或抗高血压药物。
摘要:
The invention relates to novel substituted tyrosyl alanine dipeptide amides of the formula: ##STR1## and the pharmaceutically acceptable acid addition salts thereof wherein R.sub.1 represents straight or branched lower alkyl having 1 to 4 carbons;R.sub.2 represents hydrogen, hydroxy, --OCO.sub.2 R.sub.1 substituent or lower alkyl having 1 to 4 carbons;R.sub.3 represents a hydrogen or lower alkyl having 1 to 6 carbons;R.sub.4 and R.sub.5 may be the same or different and represent hydrogen or lower alkyl having 1 to 6 carbons;n is 1 to 6;X represents a hydrogen, hydroxy or OCO.sub.2 R.sub.1 substituent;A represents a cyclohexyl, phenyl or phenyl substituted with one or more lower alkyls containing 1 to 6 carbons, one or more amino, hydroxy, halogen, nitro or lower alkoxy substituent having 1 to 6 carbons;V represents the asymmetric carbon that may be racemic or have the D or L configuration;W represents the asymmetric carbon when R.sub.4 and R.sub.5 are not the same that may optionally be racemic or have the D or L configuration. These compounds are useful as analgesic and/or antihypertensive agents.
摘要:
N-Adamantane-substituted tetrapeptide amides and the pharmacologically acceptable salts thereof are disclosed herein. These compounds are analogs of enkephalin wherein the methionine or leucine of position 5 has been substituted by an adamantyl amide and the glycine of position 2 has been substituted by various amino acid residues. Optionally the tyrosine of position 1 and the phenylalanine of position 4 may be substituted by various amino acid residues. These compounds exhibit agonist activity at opiate receptor sites and are useful as analgesics.
摘要:
The invention discloses cyclohexyl and phenyl substituted enkephalin derivatives of the formula: ##STR1## Where R.sub.1, R.sub.2, R.sub.4, and R.sub.8 is hydrogen or alkyl of R.sub.3 is alkylthioalkyl or alkylsulfinylalkyl, X is: ##STR2## R.sub.5 is cyclohexylmethyl, phenylmethyl, optionally substituted by --NO.sub.2, R.sub.6 is cyclohexyl or phenyl optionally substituted by R.sub.7 and R.sub.7 is hydrogen, an alkyl ester of carboxylic acid or hydroxyalkyl and the pharmaceutically acceptable salts, which are useful as analgesic agents.