Sodium Hydroxide → trans-2-({4'-[(6-Chloro-1,3-benzothiazol-2-yl)amino]-1,1'-biphenyl-4-yl}carbonyl)cyclohexanecarboxylic acid

HRID 30936

Reaktionsgleichung

Reaktionsgleichung von HRID 30936
[NH2:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[CH:13]=[CH:12][C:11]([C:14]([C@H:16]3[CH2:21][CH2:20][CH2:19][CH2:18][C@H:17]3[C:22]([O:24]C)=[O:23])=[O:15])=[CH:10][CH:9]=2)=[CH:4][CH:3]=1.Cl[C:27]1[S:28][C:29]2[CH:35]=[C:34]([Cl:36])[CH:33]=[CH:32][C:30]=2[N:31]=1.[OH-].[Na+]>C(O)CCC>[Cl:36][C:34]1[CH:33]=[CH:32][C:30]2[N:31]=[C:27]([NH:1][C:2]3[CH:3]=[CH:4][C:5]([C:8]4[CH:13]=[CH:12][C:11]([C:14]([C@@H:16]5[CH2:21][CH2:20][CH2:19][CH2:18][C@H:17]5[C:22]([OH:24])=[O:23])=[O:15])=[CH:10][CH:9]=4)=[CH:6][CH:7]=3)[S:28][C:29]=2[CH:35]=1

Komponenten

5

Edukt 3

HCID 14798Sodium HydroxideHCID 771762,6-DichlorobenzothiazoleHCID 67147298Methyl cis-2-[(4'-amino-1,1'-biphenyl-4-yl)carbonyl]cyclohexanecarboxylate

Produkt 1

HCID 11584016trans-2-({4'-[(6-Chloro-1,3-benzothiazol-2-yl)amino]-1,1'-biphenyl-4-yl}carbonyl)cyclohexanecarboxylic acidAusbeute 15,5 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 2631-ButanolLösungsmittel

Reaktionsbedingungen

Temperatur
90 °C

Versuchsvorschrift

To a solution of cis-methyl 2-[(4′-amino-1,1′-biphenyl-4-yl)carbonyl]cyclohexanecarboxylate (200 mg, 0.59 mmol) in n-butanol (8 mL) was added 2,6-dichloro-1,3-benzothiazole (241 mg, 1.19 mmol), and the resulting reaction mixture was heated at 90° C. overnight. The mixture was evaporated to dryness and the residue was combined with MeOH. Then 1 N NaOH (6.0 mL, 6.0 mmol) was added to the suspension, and the reaction mixture was stirred at 50° C. overnight. The reaction mixture was concentrated under reduced pressure, and the residue was suspended in water. Concentrated aqueous HCl was added to adjust the acidity to pH 1, and the precipitate was collected by filtration, washed with water and MeOH, and dried in a vacuum oven to give trans-2-({4′-[(6-chloro-1,3-benzothiazol-2-yl)amino]-1,1′-biphenyl-4-yl}carbonyl)cyclohexanecarboxylic acid (45 mg, 15%). LC-MS m/z 491.1 (MH+), ret. time 3.90 min; 1H NMR (400 MHz, DMSO-d6) δ 1.13 (m, 1H), 1.28˜1.51 (m, 3H), 1.78 (m, 1H), 1.93 (m, 1H), 2.09 (m, 1H), 2.68 (m, 1H), 3.63 (m, 1H), 7.35 (m, 1H), 7.60 (m, 1H), 7.80 (m, 4H), 7.90 (d, 1H), 7.96 (m, 1H), 8.05 (d, 2H), 10.75 (s, 1H).

Aufarbeitung

  1. customthe resulting reaction mixture
  2. customThe mixture was evaporated to dryness
  3. concentrationThe reaction mixture was concentrated under reduced pressure
  4. additionConcentrated aqueous HCl was added
  5. filtrationthe precipitate was collected by filtration
  6. washwashed with water and MeOH
  7. customdried in a vacuum oven

Quellen und Nachweise

ORD-Eintrag
ord-2fb29942e1554d4ca746da7392acd4c2
Quelldatensatz
uspto-grants-2008_09
Patentnummer
US07423156B2

Verknüpfte Notizen

Wird geladen…