The present invention relates to the use of novel macrocyclic compounds of Formula I,
wherein the variables Q, Q
1
, Q
2
, Q
3
, and Q
4
are defined as described herein, which inhibit JAK and are useful for the treatment of auto-immune and inflammatory diseases.
This invention relates to novel Spiro cyclopentane derivatives of formula (I) or a pharmaceutically acceptable salt thereof, for treating diseases and conditions of the central nervous system (CNS), in particular sleep disorders.
The invention relates to compounds of formula I:
wherein:
R is H or alkyl,
X denotes one of the following groups:
Y is OH, Oalkyl, NR
2
R
3
. The compounds are useful e.g. in the treatment of autoimmune and/or inflammatory disorders, such as multiple sclerosis.
Histamine H-1 and serotonin 5-HT2A receptors mediate two different mechanisms involved in sleep regulation: H-1 antagonists are sleep inducers, while 5-HT2A antagonists are sleep maintainers. Starting from 9'a, a novel spirotetracyclic compound endowed with good H-1/5-HT2A potency but poor selectivity, very high Cli, and a poor P450 profile, a specific optimization strategy was set up. In particular, we investigated the possibility of introducing appropriate amino acid moieties to optimize the developability profile of the series. Following this zwitterionic approach, we were able to identify several advanced leads (51, 65, and 73) with potent dual H-1/5-HT2A activity and appropriate developability profiles. These compounds exhibited efficacy as hypnotic agents in a rat telemetric sleep model with minimal effective doses in the range 3-10 mg/kg po.