[EN] TRIAZOLO-PYRIDAZINE COMPOUNDS AND DERIVATIVES THEREOF USEFUL IN THE TREATMENT OF NEUROPATHIC PAIN [FR] COMPOSES DE TRIAZOLO-PYRIDAZINE ET LEURS DERIVES, DESTINES AU TRAITEMENT DE LA DOULEUR NEUROPATHIQUE
Synthesis and Biological Activities of Topoisomerase I Inhibitors, 6-Arylmethylamino Analogues of Edotecarin
摘要:
The replacement of 1,3-dihydroxy-2-propylamino moiety at the N6-position of edotecarin (1) by arylmethylamino groups yielded a number of more potent topoisomerase I inhibitors with better cytotoxic (CTX) activities in vitro than edotecarin. Among them, the three most potent pyridylmethyl analogues, compounds 22g, 22m, and 23c, showed better antitumor activities against MKN-45 human stomach cancer or MX-1 human breast cancer xenografted mice than those of edotecarin. Furthermore, compounds 22m and 23c exhibited complete response against MX-1 cells implanted in mice.
[EN] TRIAZOLO-PYRIDAZINE COMPOUNDS AND DERIVATIVES THEREOF USEFUL IN THE TREATMENT OF NEUROPATHIC PAIN<br/>[FR] COMPOSES DE TRIAZOLO-PYRIDAZINE ET LEURS DERIVES, DESTINES AU TRAITEMENT DE LA DOULEUR NEUROPATHIQUE
申请人:MERCK & CO INC
公开号:WO2005041971A1
公开(公告)日:2005-05-12
The present invention is directed to a method of use of triazolo-pyridazine compounds in the treatment of neuropathic pain. The present invention is also directed to the use of triazolo-pyridazine compounds in the treatment of psychiatric and mood disorders such as, for example, schizophrenia, anxiety, depression, bipolar disorders, and panic, as well as in the treatment of pain, Parkinson’s disease, cognitive dysfunction, epilepsy, circadian rhythm and sleep disorders - such as shift-work induced sleep disorder and jet-lag, drug addiction, drug abuse, drug withdrawal and other diseases. The present invention is also directed to novel triazolo-pyridazine compounds that selectively bind to α2δ-1 subunit of Ca channels.
The replacement of 1,3-dihydroxy-2-propylamino moiety at the N6-position of edotecarin (1) by arylmethylamino groups yielded a number of more potent topoisomerase I inhibitors with better cytotoxic (CTX) activities in vitro than edotecarin. Among them, the three most potent pyridylmethyl analogues, compounds 22g, 22m, and 23c, showed better antitumor activities against MKN-45 human stomach cancer or MX-1 human breast cancer xenografted mice than those of edotecarin. Furthermore, compounds 22m and 23c exhibited complete response against MX-1 cells implanted in mice.