Thiazole- and imidazole-containing peptidomimetic inhibitors of protein farnesyltransferase
摘要:
Mimetics of the C-terminal CAAX tetrapeptide of Ras protein were designed replacing internal dipeptide AA with 4-amino-2-phenylbenzoic acid and cysteine (C) with 2-amino-4-thiazolyl-, 2-mercapto-4-thiazolyl-, 2-mercapto-4-imidazolyl- and 2-methylmercapto-4-thiazolyl-acetic or propionic acid. The compound in which C is replaced by 2-amino-4-thiazolylacetic acid inhibited FTase activity in the low nanomolar range and showed antiproliferative effect on rat aortic smooth muscle cells interfering with Ras farnesylation. On the basis of these results, 2-aminothiazole can be considered as an alternative to heterocycles, such as pyridine and imidazole, normally used in FTase inhibitors designed as non-thiol CAAX mimetics. (C) 2011 Elsevier Ltd. All rights reserved.
Thiazole- and imidazole-containing peptidomimetic inhibitors of protein farnesyltransferase
摘要:
Mimetics of the C-terminal CAAX tetrapeptide of Ras protein were designed replacing internal dipeptide AA with 4-amino-2-phenylbenzoic acid and cysteine (C) with 2-amino-4-thiazolyl-, 2-mercapto-4-thiazolyl-, 2-mercapto-4-imidazolyl- and 2-methylmercapto-4-thiazolyl-acetic or propionic acid. The compound in which C is replaced by 2-amino-4-thiazolylacetic acid inhibited FTase activity in the low nanomolar range and showed antiproliferative effect on rat aortic smooth muscle cells interfering with Ras farnesylation. On the basis of these results, 2-aminothiazole can be considered as an alternative to heterocycles, such as pyridine and imidazole, normally used in FTase inhibitors designed as non-thiol CAAX mimetics. (C) 2011 Elsevier Ltd. All rights reserved.
[EN] NEW CEPHEM COMPOUNDS AND PHARMACEUTICAL USE THEREOF<br/>[FR] NOUVEAUX COMPOSES DE CEPHEM ET LEUR UTILISATION PHARMACEUTIQUE
申请人:FUJISAWA PHARMACEUTICAL CO., LTD.
公开号:WO1997029111A1
公开(公告)日:1997-08-14
(EN) This invention relates to new cephem compounds represented by general formula (I) wherein each symbol is as defined in the specification or a salt thereof, which has antimicrobial activity against $i(Helicobacter pylori), and are useful as anti-$i(Helicobacter pylori) agents, anti-gastritis agents, anti-ulcer agents and anti-cancer agents.(FR) Cette invention concerne un nouveau composé de céphem représenté par la formule générale (I) dans laquelle chaque symbole est tel que défini dans la description. Cette invention concerne également les sels de ce composé, lequel possède une activité antimicrobienne dirigée contre l'$i(Helicobacter pylori). Ce composé est utile en qualité d'agent de lutte contre l'$i(Helicobacter pylori), les gastrites, les ulcères et le cancer.
This invention relates to new cephem compound represented by the following general formula (I): ##STR1## wherein each symbol is as defined in the specification or a salt thereof, which has antimicrobial activity against Helicobacter pylori, and are useful as anti-Helicobacter pylori agents, anti-gastritis agents, anti-ulcer agents and anti-cancer agents.
Mimetics of the C-terminal CAAX tetrapeptide of Ras protein were designed replacing internal dipeptide AA with 4-amino-2-phenylbenzoic acid and cysteine (C) with 2-amino-4-thiazolyl-, 2-mercapto-4-thiazolyl-, 2-mercapto-4-imidazolyl- and 2-methylmercapto-4-thiazolyl-acetic or propionic acid. The compound in which C is replaced by 2-amino-4-thiazolylacetic acid inhibited FTase activity in the low nanomolar range and showed antiproliferative effect on rat aortic smooth muscle cells interfering with Ras farnesylation. On the basis of these results, 2-aminothiazole can be considered as an alternative to heterocycles, such as pyridine and imidazole, normally used in FTase inhibitors designed as non-thiol CAAX mimetics. (C) 2011 Elsevier Ltd. All rights reserved.