The present invention relates to thiophene containing compounds of formula (I)
wherein R
1
, R
2
, R
3
, and n are as defined in the specification, pharmaceutical compositions comprising such compounds, and methods of treating conditions and disorders using such compounds and pharmaceutical compositions.
A Mild, Nonacidic Method for the Conversion of Carboxylic Esters into Oxazolines
作者:J. H. Dodd、J. Guan、C. F. Schwender
DOI:10.1080/00397919308013297
日期:1993.4
Abstract Conversion of carboxylic esters directly into amide alcohols is facilitated by use of base. Combined with a nonacidic cyclization of the intermediate amide alcohol this method allows formation of oxazolines under nonacidic conditions directly from the carboxylic esters.
Racemic endo- and exo-1-methoxybicyclo[2.2.2]oct-5-ene-2-carboxylic acids are starting materials for a novel and efficient synthesis of chiral 3R-[2-hydroxy-4-(1,1-dimethylheptyl)phenyl]-4R-(3-hydroxypropyl)-1R-cycloh exanol, a compound having valuable central nervous system (CNS) activity, particularly as an analgesic and as an antiemetic.
Racemic endo- and exo-1-methoxybicyclo[2.2.2]oct-5-ene-2-carboxylic acids are starting materials for a novel and efficient synthesis of chiral 3R-[2-hydroxy-4-(1,1-dimethylheptyl)phenyl]-4R-(3-hydroxypropyl)-1R-cycloh exanol, a compound having valuable central nervous system (CNS) activity, particularly as an analgesic and as an antiemetic.
The present invention relates to thiophene containing compounds of formula (I)
wherein R1, R2, R3, and n are as defined in the specification, pharmaceutical compositions comprising such compounds, and methods of treating conditions and disorders using such compounds and pharmaceutical compositions.