Sodium Carbonate → HCID 90281126, compound

HRID 2201949Notes

Reaction equation

Cl.[CH3:2][C@@H:3]1[CH2:7][CH2:6][CH2:5][N:4]1[CH2:8][CH2:9][C:10]1[CH:15]=[CH:14][C:13](B(O)O)=[CH:12][CH:11]=1.Cl[C:20]1[CH:25]=[CH:24][C:23]([C:26](=[O:32])[CH2:27][CH2:28][C:29]([OH:31])=[O:30])=[CH:22][CH:21]=1.C([O-])([O-])=O.[Na+].[Na+].O1CCOCC1>O>[CH3:2][C@@H:3]1[CH2:7][CH2:6][CH2:5][N:4]1[CH2:8][CH2:9][C:10]1[CH:15]=[CH:14][C:13]([C:20]2[CH:21]=[CH:22][C:23]([C:26](=[O:32])[CH2:27][CH2:28][C:29]([OH:31])=[O:30])=[CH:24][CH:25]=2)=[CH:12][CH:11]=1

Participants

Conditions

Temperature: 150 °C

Procedure

To a 2 mL heavy-walled tube was added (R)-4-(2-(2-methylpyrrolidin-1-yl)ethyl)phenylboronic acid hydrochloride (127 mg, 0.471 mmol), 4-(4-chlorophenyl)-4-oxobutanoic acid (91 mg, 0.428 mmol), Na2CO3 (136 mg, 1.284 mmol), dichlorobis(p-dimethylaminophenyldi-tert-butylphosphine)palladium (3.03 mg, 4.28 μmol), dioxane (1 mL), and water (0.15 mL). The tube was sealed and heated to 150° C. for 10 min under microwave irradiation. The mixture was purified by preparative HPLC to give the title compound as a white solid. LCMS m/z=366.1 [M+H]; 1H NMR (400 MHz, DMSO-d6) δ ppm 1.20 (d, J=6.3 Hz, 0.4H), 1.37 (d, J=6.3 Hz, 2.6H), 1.54-1.65 (m, 1H), 1.90-2.05 (m, 2H), 2.18-2.26 (m, 1H), 2.62 (t, J=7.8 Hz, 2H), 2.95-3.10 (m, 2H), 3.16-3.30 (m, 3H), 3.38-3.68 (m, 4H), 7.46 (d, J=8.2 Hz, 2H), 7.74 (d, J=8.2 Hz, 2H), 7.84 (d, J=8.2 Hz, 2H), 8.06 (d, J=8.2 Hz, 2H), 9.34 (bs, 1H).

Workup

customThe tube was sealed
customThe mixture was purified by preparative HPLC

Sources & evidence

ORD record: ord-42b4739a63ea4fffa6096be61b0f4d87
Source dataset: uspto-grants-2016_06
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09365511B2

Reaction notes

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