β-Secretase (BACE1) Inhibitors with High in Vivo Efficacy Suitable for Clinical Evaluation in Alzheimer’s Disease
摘要:
An extensive fluorine scan of 1,3-oxazines revealed the power of fluorine(s) to lower the pK(a) and thereby dramatically change the pharmacological profile of this class of BACE1 inhibitors. The CF3 substituted oxazine 89, a potent and highly brain penetrant BACE1 inhibitor, was able to reduce significantly CSF A beta 40 and 42 in rats at oral doses as low as 1 mg/kg. The effect was long lasting, showing a significant reduction of A beta 40 and 42 even after 24 h. In contrast to 89, compound 1b lacking the CF3 group was virtually inactive in vivo.
Provided herein is a compound of formula I:
as wells as a pharmaceutical composition, a process of making and a method of using a compound of formula I. The compounds of formula I are BACE1 inhibitors useful for the treatement of, for example, Alzheimer's Disease.
The present invention provides a compound of formula (I) having BACE1 inhibitory activity, their manufacture, pharmaceutical compositions containing them and their use as therapeutically active substances. The active compounds of the present invention are useful in the therapeutic and/or prophylactic treatment of e.g. Alzheimer's disease.
β-Secretase (BACE1) Inhibitors with High in Vivo Efficacy Suitable for Clinical Evaluation in Alzheimer’s Disease
作者:Hans Hilpert、Wolfgang Guba、Thomas J. Woltering、Wolfgang Wostl、Emmanuel Pinard、Harald Mauser、Alexander V. Mayweg、Mark Rogers-Evans、Roland Humm、Daniela Krummenacher、Thorsten Muser、Christian Schnider、Helmut Jacobsen、Laurence Ozmen、Alessandra Bergadano、David W. Banner、Remo Hochstrasser、Andreas Kuglstatter、Pascale David-Pierson、Holger Fischer、Alessandra Polara、Robert Narquizian
DOI:10.1021/jm400225m
日期:2013.5.23
An extensive fluorine scan of 1,3-oxazines revealed the power of fluorine(s) to lower the pK(a) and thereby dramatically change the pharmacological profile of this class of BACE1 inhibitors. The CF3 substituted oxazine 89, a potent and highly brain penetrant BACE1 inhibitor, was able to reduce significantly CSF A beta 40 and 42 in rats at oral doses as low as 1 mg/kg. The effect was long lasting, showing a significant reduction of A beta 40 and 42 even after 24 h. In contrast to 89, compound 1b lacking the CF3 group was virtually inactive in vivo.
The present invention provides a compound of formula (I) having BACE1 inhibitory activity, their manufacture, pharmaceutical compositions containing them and their use as therapeutically active substances. The active compounds of the present invention are useful in the therapeutic and/or prophylactic treatment of e.g. Alzheimer's disease.