Uses
(S)-3-Cyclohexene-1-carboxylic Acid has been used as a reactant for the preparation of N-[(1R,2S,5S)-2-{[(5-chloroindol-2-yl)carbonyl]amino}-5-(dimethylcarbamoyl)cyclohexyl]-5-methyl-4,5,6,7-tetrahydrothiazolo[5,4-c]pyridine-2-carboxamide hydrochloride, a potent and orally active direct inhibitor of factor Xa.
Uses
(S)-(-)-3-CYCLOHEXENECARBOXYLIC ACID can be used as organic synthesis intermediates and pharmaceutical intermediates, mainly used in laboratory research and development processes and chemical production processes.
Synthesis
54.94 g of cyclohex-3-ene-1(S)-carboxylic acid (R)-(+)-methylbenzylamine salt and 18.2 volumes of H2O were charged to a flask at 20-25°C and stirred. To the mixture obtained further 6.7 volumes of H2O and 10 volumes of EtOAc were added. The mixture obtained was stirred for 15 min, the phases were separated and the organic layer was discarded. The aqueous layer was treated with 10 volumes of MTBE and 2.5 equivalents of 6M HCI were added slowly. The mixture obtained was stirred and two layers were formed, separated and the aqueous layer was extracted with MTBE. The organic layers obtained were combined and washed with aqueous, 30percent NaCl solution. The organic phase obtained was dried over Na2S04, filtered, and from the filtrate obtained solvent was removed in vacuo. Cyclohex-3-ene-1(S)-carboxylic acid in the form of a clear oil was obtained. Yield: 26.13 g (93.3percent of theory).
References
[1] Bioorganic and Medicinal Chemistry, 2009, vol. 17, # 3, p. 1193 - 1206
[2] Patent: EP2390245, 2011, A1. Location in patent: Page/Page column 15
[3] Patent: EP2399904, 2011, A1. Location in patent: Page/Page column 25
[4] Patent: EP1577301, 2005, A1. Location in patent: Page/Page column 191
[5] Patent: EP1405852, 2004, A1. Location in patent: Page 175
