Tri- and tetrasubstituted α-fluorocyclohexanones with enantiomeric excesses in the range of 97–100%
摘要:
The alpha -fluorinated trisubstituted ketones (2S,5R)-(-1-7-Ia. (2R,5R)-(+)-7-IIe. (2S,5R)-(-)-8-Ia and (2R.5R)-(+)-8-IIe were synthesised from (+)-dihydrocarvone (99%, (R)-configuration at C-5) and fully characterised. alpha -Fluorinated tetrasubstituted ketones (-)-9-Ia, (+)-9-Ia, (+)-9-IIa and (+)-10-Ia having e.e.s of greater than or equal to 97% were synthesised as racemates from 3-methyl cyclo-hexenone then resolved into the pure enantiomers using chiral HPLC and fully characterised. (C) 2001 Published by Elsevier Science Ltd.
Tri- and tetrasubstituted α-fluorocyclohexanones with enantiomeric excesses in the range of 97–100%
摘要:
The alpha -fluorinated trisubstituted ketones (2S,5R)-(-1-7-Ia. (2R,5R)-(+)-7-IIe. (2S,5R)-(-)-8-Ia and (2R.5R)-(+)-8-IIe were synthesised from (+)-dihydrocarvone (99%, (R)-configuration at C-5) and fully characterised. alpha -Fluorinated tetrasubstituted ketones (-)-9-Ia, (+)-9-Ia, (+)-9-IIa and (+)-10-Ia having e.e.s of greater than or equal to 97% were synthesised as racemates from 3-methyl cyclo-hexenone then resolved into the pure enantiomers using chiral HPLC and fully characterised. (C) 2001 Published by Elsevier Science Ltd.
Niacin Receptor Agonists, Compositions Containing Such Compounds and Methods of Treatment
申请人:Raghavan Subharekha
公开号:US20090062269A1
公开(公告)日:2009-03-05
The present invention encompasses compounds of Formula I: as well as pharmaceutically acceptable salts and hydrates thereof, that are useful for treating atherosclerosis, dyslipidemias and the like. Pharmaceutical compositions and methods of use are also included.
The alpha -fluorinated trisubstituted ketones (2S,5R)-(-1-7-Ia. (2R,5R)-(+)-7-IIe. (2S,5R)-(-)-8-Ia and (2R.5R)-(+)-8-IIe were synthesised from (+)-dihydrocarvone (99%, (R)-configuration at C-5) and fully characterised. alpha -Fluorinated tetrasubstituted ketones (-)-9-Ia, (+)-9-Ia, (+)-9-IIa and (+)-10-Ia having e.e.s of greater than or equal to 97% were synthesised as racemates from 3-methyl cyclo-hexenone then resolved into the pure enantiomers using chiral HPLC and fully characterised. (C) 2001 Published by Elsevier Science Ltd.