Inhibition of tumor cell growth and angiogenesis by 7-Aminoalkoxy-4-aryloxy-quinazoline ureas, a novel series of multi-tyrosine kinase inhibitors
摘要:
Several regulatory and signaling molecules governing angiogenesis are targets of interest for the development of drugs in the cancer, including growth factors such as Vascular Endothelial Growth Factor (VEGF) and Platelet-Derived Growth Factor (PDGF). A series of 4-aryloxy-6,7-dimethoxyquinazolines, previously synthesized in our laboratory, has shown a nanomolar inhibition of kinase enzymatic activity of VEGFR, PDGFR and c-Kit. We have therefore studied the impact of the variation in the 7-position substitution of the quinazoline core. Substitution by aminoalkoxy chains led to new highly potent ATP-competitive inhibitors of VEGFR, PDGFR and c-Kit enzyme with IC50 values in the nanomolar range and this substitution has increased greatly antiproliferative activity on cancer cell lines (PC3, MCF7, HT29) and HUVEC (human umbilical vein endothelial cells). One of the most promising compounds (36) was assessed for its ability to limit the induction of web like network of capillary tubes by the human umbilical vascular endothelial cells (HUVEC) and for its ability to inhibit invasion. (C) 2014 Elsevier Masson SAS. All rights reserved.
Inhibition of tumor cell growth and angiogenesis by 7-Aminoalkoxy-4-aryloxy-quinazoline ureas, a novel series of multi-tyrosine kinase inhibitors
摘要:
Several regulatory and signaling molecules governing angiogenesis are targets of interest for the development of drugs in the cancer, including growth factors such as Vascular Endothelial Growth Factor (VEGF) and Platelet-Derived Growth Factor (PDGF). A series of 4-aryloxy-6,7-dimethoxyquinazolines, previously synthesized in our laboratory, has shown a nanomolar inhibition of kinase enzymatic activity of VEGFR, PDGFR and c-Kit. We have therefore studied the impact of the variation in the 7-position substitution of the quinazoline core. Substitution by aminoalkoxy chains led to new highly potent ATP-competitive inhibitors of VEGFR, PDGFR and c-Kit enzyme with IC50 values in the nanomolar range and this substitution has increased greatly antiproliferative activity on cancer cell lines (PC3, MCF7, HT29) and HUVEC (human umbilical vein endothelial cells). One of the most promising compounds (36) was assessed for its ability to limit the induction of web like network of capillary tubes by the human umbilical vascular endothelial cells (HUVEC) and for its ability to inhibit invasion. (C) 2014 Elsevier Masson SAS. All rights reserved.
(EN) This application relates to the use as thrombin inhibitors, coagulation inhibitors and thromboembolic disorder agents of diamines of formula (I) as defined herein. It also provides novel compounds of formula (I), processes and intermediates for their preparation, and pharmaceutical formulations comprising the novel compounds of formula (I).(FR) La présente invention concerne l'utilisation, comme inhibiteurs de thrombine, inhibiteurs de coagulation et agents destinés aux désordres de la thromboembolie, de diamines de formule I telle qu'elle est définie dans la description. L'invention concerne aussi des composés nouveaux de formule I, des procédés et des produits intermédiaires pour leur préparation, et des formulations pharmaceutiques comprenant les composés nouveaux de formule I.
Dibasic benzo[b]thiophene derivatives as a novel class of active site directed thrombin inhibitors. 2. Exploring interactions at the proximal (S2) binding site
作者:Daniel J. Sall、Stephen L. Briggs、Nickolay Y. Chirgadze、David K. Clawson、Donetta S. Gifford-Moore、Valentine J. Klimkowski、Jefferson R. McCowan、Gerald F. Smith、James H. Wikel
DOI:10.1016/s0960-894x(98)00447-8
日期:1998.9
In an effort to increase the thrombin inhibitory activity of a novel series of inhibitors (i.e., 1a), substituents were incorporated at the C-3" position of the C-3 aryl ring (2). Consistent with the X-ray crystallography studies, small hydrophobic groups at the C-3" site (Br and Me) enhanced thrombin inhibitory activity by 8-fold. However, a few more hydrophilic substituents (NO2 and OMe) also enhanced the potency of the series. The biological results are discussed in terms of molecular modeling studies. (C) 1998 Elsevier Science Ltd. All rights reserved.