Second Generation Analogues of the Cancer Drug Clinical Candidate Tipifarnib for Anti-Chagas Disease Drug Discovery
摘要:
We previously reported that the cancer drug clinical candidate tipifarnib kills the causative agent of Chagas disease, Trypanosoma cruzi, by blocking ergosterol biosynthesis at the level of inhibition of lanosterol 14 alpha-demethylase. Tipifarnib is an inhibitor of human protein farnesyltransferase. We synthesized tipifarnib analogues that no longer bind to protein farnesyltransferase and display increased potency for killing parasites. This was achieved in a structure-guided fashion by changing the substituents attached to the phenyl group at the 4-position of the quinoline ring of tipifarnib and by replacing the amino group by OMe. Several compounds that kill Trypanosoma cruzi at subnanomolar concentrations and are devoid of protein farnesyltransferase inhibition were discovered. The compounds are shown to be advantageous over other lanosterol 14 alpha-demethylase inhibitors in that they show only modest potency for inhibition of human cytochrome P450 (3A4). Since tipifarnib displays high oral bioavailability and acceptable pharmacokinetic properties, the newly discovered tipifarnib analogues are ideal leads for the development of drugs to treat Chagas disease.
[EN] IMIDAZOLYLKETONE DERIVATIVES ASD ALDOSTERONE SYNTHASE INHIBITORS<br/>[FR] DÉRIVÉS D'IMIDAZOLYLCÉTONE EN TANT QU'INHIBITEURS DE L'ALDOSTÉRONE SYNTHASE
申请人:HOFFMANN LA ROCHE
公开号:WO2013120771A1
公开(公告)日:2013-08-22
The invention provides novel compounds having the general formula (I), wherein R1, R2, R3 and R4 n are as described herein, compositions including the compounds and methods of using the compounds as inhibitors of aldosterone synthase.
The invention provides novel compounds having the general formula (I)
wherein R
1
, R
2
, R
3
and R
4
n are as described herein, compositions including the compounds and methods of using the compounds.
Second Generation Analogues of the Cancer Drug Clinical Candidate Tipifarnib for Anti-Chagas Disease Drug Discovery
作者:James M. Kraus、Hari Babu Tatipaka、Sarah A. McGuffin、Naveen Kumar Chennamaneni、Mandana Karimi、Jenifer Arif、Christophe L. M. J. Verlinde、Frederick S. Buckner、Michael H. Gelb
DOI:10.1021/jm9013136
日期:2010.5.27
We previously reported that the cancer drug clinical candidate tipifarnib kills the causative agent of Chagas disease, Trypanosoma cruzi, by blocking ergosterol biosynthesis at the level of inhibition of lanosterol 14 alpha-demethylase. Tipifarnib is an inhibitor of human protein farnesyltransferase. We synthesized tipifarnib analogues that no longer bind to protein farnesyltransferase and display increased potency for killing parasites. This was achieved in a structure-guided fashion by changing the substituents attached to the phenyl group at the 4-position of the quinoline ring of tipifarnib and by replacing the amino group by OMe. Several compounds that kill Trypanosoma cruzi at subnanomolar concentrations and are devoid of protein farnesyltransferase inhibition were discovered. The compounds are shown to be advantageous over other lanosterol 14 alpha-demethylase inhibitors in that they show only modest potency for inhibition of human cytochrome P450 (3A4). Since tipifarnib displays high oral bioavailability and acceptable pharmacokinetic properties, the newly discovered tipifarnib analogues are ideal leads for the development of drugs to treat Chagas disease.