Acetyl chloride → 10-(Acetylamino)-N-(4-fluorobenzyl)-3-hydroxy-4-oxo-4,6,7,8,9,10-hexahydro-7,10-ethanopyrimido[1,2-a]azepine-2-carboxamide

HRID 1093124Notes

Reaction equation

HRID 1093124 reaction equation
[NH2:1][C:2]12[CH2:10][CH2:9][CH:6]([CH2:7][CH2:8]1)[CH2:5][N:4]1[C:11](=[O:27])[C:12]([OH:26])=[C:13]([C:15]([NH:17][CH2:18][C:19]3[CH:24]=[CH:23][C:22]([F:25])=[CH:21][CH:20]=3)=[O:16])[N:14]=[C:3]21.C(N(CC)CC)C.[C:35](Cl)(=[O:37])[CH3:36].CNC.CO>C(Cl)Cl.CO>[C:35]([NH:1][C:2]12[CH2:8][CH2:7][CH:6]([CH2:9][CH2:10]1)[CH2:5][N:4]1[C:11](=[O:27])[C:12]([OH:26])=[C:13]([C:15]([NH:17][CH2:18][C:19]3[CH:20]=[CH:21][C:22]([F:25])=[CH:23][CH:24]=3)=[O:16])[N:14]=[C:3]21)(=[O:37])[CH3:36]

Participants

7

Reactant 4

HCID 6367Acetyl chlorideHCID 8471TriethylamineHCID 22497844Dimethylamine methanolHCID 5790475010-Amino-N-(4-fluorobenzyl)-3-hydroxy-4-oxo-4,6,7,8,9,10-hexahydro-7,10-ethanopyrimido[1,2-a]azepine-2-carboxamide

Product 1

HCID 5790506510-(Acetylamino)-N-(4-fluorobenzyl)-3-hydroxy-4-oxo-4,6,7,8,9,10-hexahydro-7,10-ethanopyrimido[1,2-a]azepine-2-carboxamideYield 11%

Reagents, catalysts & solvents 2

HCID 887MethanolSolventHCID 6344DichloromethaneSolvent

Conditions

Temperature
60 °C

Procedure

To a stirred solution of 10-amino-N-(4-fluorobenzyl)-3-hydroxy-4-oxo-4,6,7,8,9,10-hexahydro-7,10-ethanopyrimido[1,2-a]azepine-2-carboxamide (25 mg, 0.067 mmol) in CH2Cl2 (2 mL) was added triethylamine (0.05 mL) followed by acetyl chloride (0.05 mL). After 16 h at room temperature the reaction mixture was concentrated to give crude product which was dissolved in methanol (2 mL) and treated with 2M dimethylamine/methanol (0.5 mL). The resulting reaction mixture stirred at 60° C. for 2 h, cooled and purified by preparative HPLC to afford the title compound as a white solid (3 mg, 11% yield). 1H NMR (500 MHz, CDCl3) δ: 12.00 (s, 1H), 7.32-7.35 (m, 3H), 7.04-7.09 (m, 2H), 6.69 (s, 1H), 4.57 (d, 2H, J=5.8 Hz), 4.14 (d, 2H, J=3.66 Hz), 2.63-2.66 (m, 2H), 2.44-2.47 (m, 1H), 1.91-1.97 (m, 4H), 1.86 (s, 3H), 1.63-1.67 (m, 2H). LCMS (M+H)=415.29. HPLC purity: >95%.

Workup

  1. concentrationAfter 16 h at room temperature the reaction mixture was concentrated
  2. customto give crude product which
  3. customThe resulting reaction mixture
  4. temperaturecooled
  5. custompurified by preparative HPLC

Sources & evidence

ORD record
ord-48e4d485a64a4d2db9925acd592c11ca
Source dataset
uspto-grants-2012_03
Patent number
US08129398B2

Reaction notes

Loading…