Hit-to-Lead Studies for the Antimalarial Tetrahydroisoquinolone Carboxanilides
摘要:
Phenotypic whole-cell screening in erythrocytic cocultures of Plasmodium falciparum identified a series of dihydroisoquinolones that possessed potent antimalarial activity against multiple resistant strains of P. falciparum in vitro and show no cytotoxicity to mammalian cells. Systematic structure activity studies revealed relationships between potency and modifications at N-2, C-3, and C-4. Careful structure property relationship studies, coupled with studies of metabolism, addressed the poor aqueous solubility and metabolic vulnerability, as well as potential toxicological effects, inherent in the more potent primary screening hits such as 10b. Analogues 13h and 13i, with structural modifications at each site, were shown to possess excellent antimalarial activity in vivo. The (+)-(35,4S) enantiomer of 13i and similar analogues were identified as the more potent. On the basis of these studies, we have selected (+)-13i for further study as a preclinical candidate.
The present invention relates to a series of Isoquinolone derivatives which are suitable to treat infections with viruses belonging to the family of the Flaviviridae and more preferably infections with Hepatitis C virus (HCV). The present invention also relates to Isoquinolone compounds for use as a medicine for the prevention or treatment of viral infections, preferably infections with viruses belonging to the family of the Flaviviridae.
[EN] ISOQUINOLONE DERIVATIVES AS INHIBITORS OF PLAVIVIRUS REPLICATION<br/>[FR] NOUVEAUX INHIBITEURS DE LA RÉPLICATION DE FLAVIVIRUS
申请人:UNIV LEUVEN KATH
公开号:WO2010055164A3
公开(公告)日:2010-07-08
Hit-to-Lead Studies for the Antimalarial Tetrahydroisoquinolone Carboxanilides
作者:David M. Floyd、Philip Stein、Zheng Wang、Jian Liu、Steve Castro、Julie A. Clark、Michele Connelly、Fangyi Zhu、Gloria Holbrook、Amy Matheny、Martina S. Sigal、Jaeki Min、Rajkumar Dhinakaran、Senthil Krishnan、Sridevi Bashyum、Spencer Knapp、R. Kiplin Guy
DOI:10.1021/acs.jmedchem.6b00752
日期:2016.9.8
Phenotypic whole-cell screening in erythrocytic cocultures of Plasmodium falciparum identified a series of dihydroisoquinolones that possessed potent antimalarial activity against multiple resistant strains of P. falciparum in vitro and show no cytotoxicity to mammalian cells. Systematic structure activity studies revealed relationships between potency and modifications at N-2, C-3, and C-4. Careful structure property relationship studies, coupled with studies of metabolism, addressed the poor aqueous solubility and metabolic vulnerability, as well as potential toxicological effects, inherent in the more potent primary screening hits such as 10b. Analogues 13h and 13i, with structural modifications at each site, were shown to possess excellent antimalarial activity in vivo. The (+)-(35,4S) enantiomer of 13i and similar analogues were identified as the more potent. On the basis of these studies, we have selected (+)-13i for further study as a preclinical candidate.