Acetic Acid → HCID 76900984, compound

HRID 880295Notes

Reaction equation

[NH2:1][C:2]1[C:3]([CH3:25])=[C:4]([CH:22]=[CH:23][CH:24]=1)[C:5]([NH:7][CH2:8][CH:9]([OH:21])[CH2:10][N:11]1[CH2:20][CH2:19][C:18]2[C:13](=[CH:14][CH:15]=[CH:16][CH:17]=2)[CH2:12]1)=[O:6].CC(O)=O.[O:30]1[CH2:35][CH2:34][C:33](=O)[CH2:32][CH2:31]1.[BH3-]C#N.[Na+]>CO>[CH2:12]1[C:13]2[C:18](=[CH:17][CH:16]=[CH:15][CH:14]=2)[CH2:19][CH2:20][N:11]1[CH2:10][CH:9]([OH:21])[CH2:8][NH:7][C:5](=[O:6])[C:4]1[CH:22]=[CH:23][CH:24]=[C:2]([NH:1][CH:33]2[CH2:34][CH2:35][O:30][CH2:31][CH2:32]2)[C:3]=1[CH3:25]

Participants

Conditions

Temperature: 25 °C

Procedure

To a solution of 3-amino-N-(3-(3,4-dihydroisoquinolin-2(1H)-yl)-2-hydroxypropyl)-2-methylbenzamide (200 mg, 0.59 mmol) in MeOH (8 mL) was added AcOH (0.05 mL) and dihydro-2H-pyran-4(3H)-one (118 mg, 1.18 mmol). The mixture was stirred at 25° C. for 2 h. NaBH3CN (186 mg, 2.95 mmol) was added and the resulting mixture was stirred at 25° C. for 2 h. The reaction solution was concentrated and the residue was washed with water and extracted with EA. The organic layer was concentrated, and the residue was purified by prep-HPLC to give the title compound (24 mg, Yield 9.6%). 1H NMR (CD3OD, 400 MHz): δ 8.41 (s, 1H), 7.35-7.23 (m, 3H), 7.20 (d, J=7.0 Hz, 1H), 7.11 (t, J=7.8 Hz, 1H), 6.81 (d, J=8.3 Hz, 1H), 6.70 (d, J=7.3 Hz, 1H), 4.44 (s, 2H), 4.33 (brs, 1H), 3.99 (d, J=11.5 Hz, 2H), 3.66-3.43 (m, 7H), 3.38-3.16 (m, 4H), 2.15 (s, 3H), 2.01 (d, J=12.8 Hz, 2H), 1.63-1.48 (m, 2H). LCMS (m/z): 424.2 (M+1).

Workup

stirringthe resulting mixture was stirred at 25° C. for 2 h
concentrationThe reaction solution was concentrated
washthe residue was washed with water
extractionextracted with EA
concentrationThe organic layer was concentrated
customthe residue was purified by prep-HPLC

Sources & evidence

ORD record: ord-c61e4aca6ad249ebac2e18e889023a28
Source dataset: uspto-grants-2015_03
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08993555B2

Reaction notes

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