Dimethylformamide → (S)-2-(4'-Cyclopropylcarbamoyl-biphenyl-3-ylcarbamoyl)-pyrrolidine-1-carboxylic acid benzyl ester

HRID 1865863Notes

Reaction equation

[CH2:1]([O:8][C:9]([N:11]1[CH2:15][CH2:14][CH2:13][C@H:12]1[C:16](=[O:33])[NH:17][C:18]1[CH:23]=[CH:22][CH:21]=[C:20](B2OC(C)(C)C(C)(C)O2)[CH:19]=1)=[O:10])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.Br[C:35]1[CH:40]=C[C:38]([CH2:41][C:42]([NH:44][CH:45]2[CH2:47][CH2:46]2)=[O:43])=[CH:37][CH:36]=1.CN(C=O)C>CO.C([O-])(O)=O.[Na+]>[CH2:1]([O:8][C:9]([N:11]1[CH2:15][CH2:14][CH2:13][C@H:12]1[C:16](=[O:33])[NH:17][C:18]1[CH:19]=[C:20]([C:36]2[CH:35]=[CH:40][C:41]([C:42](=[O:43])[NH:44][CH:45]3[CH2:46][CH2:47]3)=[CH:38][CH:37]=2)[CH:21]=[CH:22][CH:23]=1)=[O:10])[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

Participants

Conditions

Temperature: 70 °C

Procedure

A solution of (S)-2-[3-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-phenylcarbamoyl]-pyrrolidine-1-carboxylic acid benzyl ester (74 mg, 0.16 mmol), 2-(4-bromo-phenyl)-N-cyclopropyl-acetamide (41.6 mg, 0.16 mmol), and Pd[P(Ph)3]4 (12.7 mg, 6.7 mol %) in methanol (2 mL), NaHCO3 (sat. aq., 300 μL), and DMF (400 μL) was degassed and heated to 70° C. overnight in a sealed vial. The reaction was cooled, filtered, and purified by reverse phase HPLC to give the desired product. Yield 7.1 mg. MS: 498.2 (M+H+); H1-NMR (DMSO-d6): δ (ppm) 0.37-0.44 (m, 2H), 0.58-0.66 (m, 2H), 1.80-2.04 (m, 3H), 2.14-2.36 (m, 1H), 2.55-2.68 (m, 1H), 3.36-3.57 (m, 2H), 4.32-4.43 (m, 1H), 4.91-5.14 (m, 2H), 7.00-7.65 (m, 12H), 7.87-7.95 (m, 1H), 8.12-8.18 (m, 1H), 10.08-10.14 (s, 1H).

Workup

temperatureThe reaction was cooled
filtrationfiltered
custompurified by reverse phase HPLC

Sources & evidence

ORD record: ord-e06e9ecf88824e3bb7c20066a393b184
Source dataset: uspto-grants-2009_12
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07629340B2

Reaction notes

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