This invention provides cholesterol absorption inhibitors of Formula I:
and the pharmaceutically acceptable salts thereof, wherein R
12
is an alkyl, alkeny or alkynyl group mono- or poly-substituted with —OH, —COOH or a combination of —OH and —COOH, and R
9
contains an alkyl, alkeny or alkynyl group substituted with a heterocyclic ring, amino or sulfonyl. The compounds are useful for lowering plasma cholesterol levels, particularly LDL cholesterol, and for treating atherosclerosis and preventing atherosclerotic disease events.
The present invention relates to a compound of the Formula (I)):
or pharmaceutically acceptable salt thereof, wherein the symbols are as defined in the specification; a pharmaceutical composition comprising the same, a method for treating or preventing viral infections, inflammation, dry eye, central nervous disorders, cardiovascular diseases, cancer, obesity, diabetes, muscular dystrophy, and hair loss.
Asymmetric oxidative desymmetrization of 2-substituted glycerols has been achieved by using a new chiral bisoxazoline ligand/copper catalyst system with 1,3-dibromo-5,5-dimethylhydantoin and MeOH. The present transformation smoothly proceeds with readily accessible 2-(hetero)aryl- and alkyl-substituted glycerols and provides straightforward access toward various glycerate derivatives in good to high
A general method for preparation of a variety of enantiomerically pure 2-substituted glycerol derivatives 1 was developed by utilizing l-menthone as a chiral template. Spiroacetals 6 derived formally from 2-substituted 2-(trimethylsiloxy)-1,3-propanediols and l-menthone were prepared with high stereoselectivity (> 95% de) either by Grignard reactions of oxospiroacetal 4 or by epoxidation of methylenespiroacetal 5 followed by ring opening with higher order cuprates. Highly stereoselective ring-cleavage reaction of 6 with acetophenone enol trimethylsilyl ether and TiCl4 followed by protection of the resulting diol 10 and subsequent removal of the chiral auxiliary gave 2-substituted glycerol derivatives of high enantiomeric purity.
HETEROCYCLIC RING AND CARBOCYCLIC DERIVATIVE
申请人:Shionogi & Co., Ltd.,
公开号:US20170298058A1
公开(公告)日:2017-10-19
The present invention provides novel compounds having a P2X
3
and/or P2X
2/3
receptor antagonistic effect, e.g. a compound of Formula (I):
wherein
R
2
is a hydrogen atom or the like;
ring A is five- to seven-cycloalkane or the like;
C is a carbon atom;
Q
1
and Q
2
are carbon atoms or the like;
R
9a
and R
9b
are carbon atoms or the like;
R
6
is cycloalkyl or the like;
R
7
is a group represented by the formula:
wherein
ring D is benzene or the like;
carbon atom a and b are carbon atoms;
ring B is an aromatic carbocyclic ring or the like;
s and s′ are 0 or the like;
R
9
and R
9′
are halogen or the like,
or the like,
or its pharmaceutically acceptable salt.