Xanthone in synthesis: a reactivity profile via directed lithiation of its dimethyl ketal
作者:Michal R. Odrowaz-Sypniewski、Petros G. Tsoungas、George Varvounis、Paul Cordopatis
DOI:10.1016/j.tetlet.2009.08.050
日期:2009.11
Xanthone, as itsdimethylketal, undergoes functionalization with a synthetically useful degree of regioselectivity using a lithiation protocol. The core structure is regenerated during the work-up. Monosubstitution at C-4 or C-1 and disubstitution at C-4 and C-5 or C-1 and C-5 are observed. The substitution pattern appears to be dependent upon the experimental conditions.
The xanthoneanalogues of milrinone have been prepared. The new compounds do not retain the inotropic activity of the parent compound.
已经制备了米力农的The吨酮类似物。新化合物不保留母体化合物的正性肌力。
TRICYCLIC OPIOID MODULATORS
申请人:DeCorte Bart
公开号:US20090275610A1
公开(公告)日:2009-11-05
The invention is directed to compounds of Formula (I) useful as delta and mu opioid receptor modulators. Pharmaceutical and veterinary compositions and methods of treating mild to severe pain and various diseases using compounds of the invention are also described.