In the presence of nickel acetylacetonate, beta-dicarbonyl compounds readily add at the nitrile group of 4-R-3-cyanofurazans to form enaminofurazans. The adducts obtained from 4-amino-3-cyanofurazan underwent intramolecular cyclization on heating with AcOH in EtOH to give furazano[3,4-b]pyridine derivatives in high yields.
Oxadiazolopyridine Derivates for Use as Ghrelin O-Acyl Transferase (GOAT) Inhibitors
申请人:Boehringer Ingelheim International GmbH
公开号:US20180037594A1
公开(公告)日:2018-02-08
The present invention relates to compounds of general formula I,
wherein the groups R
1
, R
2
and n are defined as in claim
1
, which have valuable pharmacological properties, in particular bind to ghrelin O-acyl transferase (GOAT) and modulate its activity. The compounds are suitable for treatment and prevention of diseases which can be influenced by this receptor, such as metabolic diseases, in particular obesity.