Lithium hydroxide, monohydrate → 3-[(4-Methyl-cyclohexanecarbonyl)-(1-methyl-piperidin-3-ylmethyl)-amino]-5-phenyl-thiophene-2-carboxylic acid

HRID 73154

Reaktionsgleichung

C[O:2][C:3]([C:5]1[S:6][C:7]([C:28]2[CH:33]=[CH:32][CH:31]=[CH:30][CH:29]=2)=[CH:8][C:9]=1[N:10]([C:19]([CH:21]1[CH2:26][CH2:25][CH:24]([CH3:27])[CH2:23][CH2:22]1)=[O:20])[CH2:11][CH:12]1[CH2:17][CH2:16][CH2:15][N:14]([CH3:18])[CH2:13]1)=[O:4].O[Li].O>C1COCC1.CO.O>[CH3:27][CH:24]1[CH2:25][CH2:26][CH:21]([C:19]([N:10]([CH2:11][CH:12]2[CH2:17][CH2:16][CH2:15][N:14]([CH3:18])[CH2:13]2)[C:9]2[CH:8]=[C:7]([C:28]3[CH:33]=[CH:32][CH:31]=[CH:30][CH:29]=3)[S:6][C:5]=2[C:3]([OH:4])=[O:2])=[O:20])[CH2:22][CH2:23]1

Komponenten

Reaktionsbedingungen

Temperatur: 55 °C

Versuchsvorschrift

3-[(4-Methyl-cyclohexanecarbonyl)-(1-methyl-piperidin-3-ylmethyl)-amino]-5-phenyl-thiophene-2-carboxylic acid methyl ester (162 mg, 0.27 mmol) was dissolved in a mixture of THF:MeOH:H2O (3:2:1, 2.8 mL) and treated with LiOH.H2O (35 mg, 0.81 mmol). The solution was heated at 55° C. for 3 h. The solvents were removed and the residue was acidified using HCl to pH 4. The product was extracted with EtOAc and the organic layers were washed with brine, dried and evaporated to provide 3-[(4-Methyl-cyclohexanecarbonyl)-(1-methyl-piperidin-3-ylmethyl)-amino]-5-phenyl-thiophene-2-carboxylic acid (146 mg, 92% yield). 1H NMR (CDCl3, 400 MHz): 9.98 (br s, 1H), 7.80 (d, 1H), 7.62 (d, 1H), 7.48-7.24 (m, 9H), 5.20-5.05 (m, 2H), 4.35-3.95 (m, 3H), 3.00 (m, 1H), 2.85-2.52 (m, 2H), 2.15 (m, 1H), 1.82-1.18 (m, 12H), 0.78 (d, 3H), 0.68 (m, 2H).

Aufarbeitung

customThe solvents were removed
extractionThe product was extracted with EtOAc
washthe organic layers were washed with brine
customdried
customevaporated

Quellen und Nachweise

ORD-Eintrag: ord-23d27e5dc69a44d9a30cb2d0d0ad2d70
Quelldatensatz: uspto-grants-2014_09
DOI: 10.6084/m9.figshare.5104873.v1
Patentnummer: US08829030B2

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