A novel approach for the direct conversion of alkylsulfonyl derivatives into alkylcarbonyl derivatives via tin-free radical carbonylation
作者:Sangmo Kim、Kyoung-Chan Lim、Sunggak Kim
DOI:10.1039/b710939c
日期:——
A novel radical approach for the directconversion of RSO(2)X into RCOX in a single step is devised; the present approach is very simple, highly efficient, and minimizes formation of by-product.
Factor Xa (FXa) is well known to play a pivotal role in blood coagulation, so FXa inhibitor is a promising drug candidate for prophylaxis and treatment of thromboembolic diseases. In the course of our research, we have found that (R)-5-[1-(acetimidoyl)piperidin-4-yloxy]-2-(7-amidinonaphthalen-2-yl)-1-(ethanesulfonyl)indoline ((R)-1) showed potent FXa inhibitory activity in vitro. However, single oral administation (RS)-1 showed high toxicity in mice. Among newly synthesized compounds, ((RS)-5-[1-(acetimidoyl)piperidin-4-yloxy]-2-(7-amidinonaphthalen-2-yl)indolin-1-yl}sulfonyl)acetic acid ((RS)-11d) showed more potent FXa inhibitory activity and higher safety than (RS)-1. The R-isoform of compound 11d ((R)-11d) exhibited potent in vitro anticoagulant activity in human and hamster plasma. Orally administered (R)-11d also showed dose-dependent potent anticoagulant activity in hamsters, marmosets and cynomolgus monkeys. Compound (R)-11d with potent anticoagulant activity and high safety is therefore favorable as a novel oral FXa inhibitor.
[EN] CARBAMIC ACID COMPOUNDS COMPRISING A SULFONAMIDE LINKAGE AS HDAC INHIBITORS<br/>[FR] COMPOSES D'ACIDE CARBAMIQUE COMPRENANT UNE LIAISON SULFONAMIDE EN TANT QU'INHIBITEURS DE HDAC
申请人:PROLIFIX LTD
公开号:WO2002030879A2
公开(公告)日:2002-04-18
This invention pertains to certain active carbamic acid compounds which inhibit HDAC activity and which have the following formula: (I) A is an aryl group; Q1 is a covalent bond or an aryl leader group; J is a sulfonamide linkage selected from: -S(=O)¿2NR?1- and -NR1S(=O)2-; R1 is a sulfonamido substituent; and, Q2 is an acid leader group; with the proviso that if J is -S(=O)¿2NR?1-, then Q1 is an aryl leader group; and pharmaceutically acceptable salts, solvates, amides, esters, ethers, chemically protected forms, and prodrugs thereof. The present invention also pertains to pharmaceutical compositions comprising such compounds, and the use of such compounds and compositions, both in vitro and in vivo, to inhibit HDAC, and, e.g., to inhibit proliferative conditions, such as cancer and psoriasis.
Carbamic acid compounds comprising a sulfonamide linkage as HDAC inhibitors
申请人:Watkins J. Clare
公开号:US20050085515A1
公开(公告)日:2005-04-21
This invention pertains to certain active carbamic acid compounds which inhibit HDAC activity and which have the following formula: (I) A is an aryl group; Q
1
is a covalent bond or an aryl leader group; J is a sulfonamide linkage selected from: —S(═O)
2
NR
1
— and —NR
1
S(═O)
2
—; R
1
is a sulfonamido substituent; and, Q
2
is an acid leader group; with the proviso that if J is —S(═O)
2
NR
1
—, then Q
1
is an aryl leader group; and pharmaceutically acceptable salts, solvates, amides, esters, ethers, chemically protected forms, and prodrugs thereof. The present invention also pertains to pharmaceutical compositions comprising such compounds, and the use of such compounds and compositions, both in vitro and in vivo, to inhibit HDAC, and, e.g., to inhibit proliferative conditions, such as cancer and psoriasis.