Dimethylamine → N-(4-Fluorobenzyl)-3-hydroxy-10-(methyl((5-methyl-3-isoxazolyl)carbonyl)amino)-4-oxo-4,6,7,8,9,10-hexahydro-7,10-ethanopyrimido[1,2-a]azepine-2-carboxamide

HRID 1093139Notes

Reaction equation

HRID 1093139 reaction equation
[F:1][C:2]1[CH:28]=[CH:27][C:5]([CH2:6][NH:7][C:8]([C:10]2[N:11]=[C:12]3[C:18]4([NH:21][CH3:22])[CH2:19][CH2:20][CH:15]([CH2:16][CH2:17]4)[CH2:14][N:13]3[C:23](=[O:26])[C:24]=2[OH:25])=[O:9])=[CH:4][CH:3]=1.C(N(CC)CC)C.[CH3:36][C:37]1[O:41][N:40]=[C:39]([C:42](Cl)=[O:43])[CH:38]=1.CNC>C(Cl)Cl.CO>[F:1][C:2]1[CH:3]=[CH:4][C:5]([CH2:6][NH:7][C:8]([C:10]2[N:11]=[C:12]3[C:18]4([N:21]([CH3:22])[C:42]([C:39]5[CH:38]=[C:37]([CH3:36])[O:41][N:40]=5)=[O:43])[CH2:19][CH2:20][CH:15]([CH2:16][CH2:17]4)[CH2:14][N:13]3[C:23](=[O:26])[C:24]=2[OH:25])=[O:9])=[CH:27][CH:28]=1

Participants

7

Reactant 4

HCID 674DimethylamineHCID 8471TriethylamineHCID 27368945-Methylisoxazole-3-carbonyl chlorideHCID 57904894N-(4-Fluorobenzyl)-3-hydroxy-10-(methylamino)-4-oxo-4,6,7,8,9,10-hexahydro-7,10-ethanopyrimido[1,2-a]azepine-2-carboxamide

Product 1

HCID 57905226N-(4-Fluorobenzyl)-3-hydroxy-10-(methyl((5-methyl-3-isoxazolyl)carbonyl)amino)-4-oxo-4,6,7,8,9,10-hexahydro-7,10-ethanopyrimido[1,2-a]azepine-2-carboxamideYield 17%

Reagents, catalysts & solvents 2

HCID 887MethanolSolvent2×HCID 6344DichloromethaneSolvent

Procedure

To a solution of N-(4-fluorobenzyl)-3-hydroxy-10-(methylamino)-4-oxo-4,6,7,8,9,10-hexahydro-7,10-ethanopyrimido[1,2-a]azepine-2-carboxamide (25 mg, 0.061 mmol) in CH2Cl2 (2 mL) was added triethylamine (0.051 mL, 0.365 mmol) followed by 5-methylisoxazole-3-carbonyl chloride (17.69 mg, 0.122 mmol) and the resulting mixture was stirred at room temperature. After 16 at room temperature the reaction mixture was concentrated to give crude product which was dissolved in methanol (2 mL) and treated with 2M dimethylamine in methanol (0.5 mL). The resulting reaction mixture was stirred at 60° C. for 2 h, then cooled and purified by preparative HPLC to afford the title compound (5 mg, 17% yield) as an off-white solid. 1H NMR (500 MHz, CDCl3) δ: 11.81 (1 H, brs), 8.70 (1 H, d, J=5.19 Hz), 7.31 (2 H, dd, J=8.55, 5.49 Hz), 6.92-7.01 (2 H, m), 6.09 (1 H, s), 4.75-4.86 (1 H, m), 4.58-4.67 (1 H, m), 4.38-4.47 (1 H, m), 3.67 (1 H, d, J=15.56 Hz), 3.35-3.46 (1 H, m), 3.13 (3 H, s), 2.50 (1 H, brs), 2.41 (3 H, s), 2.07-2.16 (3 H, m), 1.95-2.05 (1 H, m), 1.72-1.86 (2 H, m), 1.37-1.50 (1 H, m). LCMS (M+H)=496.66. HPLC purity: >95%.

Workup

  1. concentrationAfter 16 at room temperature the reaction mixture was concentrated
  2. customto give crude product which
  3. customThe resulting reaction mixture
  4. stirringwas stirred at 60° C. for 2 h
  5. temperaturecooled
  6. custompurified by preparative HPLC

Sources & evidence

ORD record
ord-07034cf0d27949269b03b42a04d85269
Source dataset
uspto-grants-2012_03
Patent number
US08129398B2

Reaction notes

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