Hydrochloric Acid → trans-2-({4'-[(5-Fluoro-1,3-benzothiazol-2-yl)amino]-1,1'-biphenyl-4-yl}carbonyl)cyclopentanecarboxylic acid

HRID 9607Notes

Reaction equation

Cl[C:2]1[S:3][C:4]2[CH:10]=[CH:9][C:8]([F:11])=[CH:7][C:5]=2[N:6]=1.[NH2:12][C:13]1[CH:18]=[CH:17][C:16]([C:19]2[CH:24]=[CH:23][C:22]([C:25]([C@@H:27]3[CH2:31][CH2:30][CH2:29][C@H:28]3[C:32]([O:34]C)=[O:33])=[O:26])=[CH:21][CH:20]=2)=[CH:15][CH:14]=1.Cl.O1CCOCC1>C(O)CCC>[F:11][C:8]1[CH:9]=[CH:10][C:4]2[S:3][C:2]([NH:12][C:13]3[CH:14]=[CH:15][C:16]([C:19]4[CH:24]=[CH:23][C:22]([C:25]([C@@H:27]5[CH2:31][CH2:30][CH2:29][C@H:28]5[C:32]([OH:34])=[O:33])=[O:26])=[CH:21][CH:20]=4)=[CH:17][CH:18]=3)=[N:6][C:5]=2[CH:7]=1

Participants

Conditions

Temperature: 90 °C

Procedure

2-Chloro-5-fluoro-1,3-benzothiazole (29 mg, 0.16 mmol) and methyl trans-2-[(4′-amino-1,1′-biphenyl-4-yl)carbonyl]cyclopentanecarboxylate (50 mg, 0.16 mmol) were combined in 1-butanol. The solution was treated with 4 M HCl in dioxane (4 μL, 0.016 mmol) and heated at 90° C. for 18 h. The reaction mixture was concentrated under reduced pressure. The residue was suspended in methanol, and the resulting solid was collected by filtration and dried in vacuo. The title compound was obtained as a pale yellow solid (55 mg, 77%); LC-MS m/z 475.3 (MH+), retention time 3.97 minutes.

Workup

concentrationThe reaction mixture was concentrated under reduced pressure
filtrationthe resulting solid was collected by filtration
customdried in vacuo

Sources & evidence

ORD record: ord-39c1247472484a9181d8206e24581e9a
Source dataset: uspto-grants-2006_08
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07091228B2

Reaction notes

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