Triethylamine → Benzyl (2-((4-fluorobenzyl)carbamoyl)-3-hydroxy-4-oxo-6,7,8,9-tetrahydro-7,10-ethanopyrimido[1,2-a]azepin-10(4H)-yl)carbamate

HRID 1093122Notes

Reaction equation

HRID 1093122 reaction equation
[CH2:1]([O:8][C:9]([NH:11][C:12]12[CH2:20][CH2:19][CH:16]([CH2:17][CH2:18]1)[CH2:15][N:14]1[C:21](=[O:31])[C:22]([OH:30])=[C:23]([C:25](OCC)=[O:26])[N:24]=[C:13]21)=[O:10])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[F:32][C:33]1[CH:38]=[CH:37][C:36]([CH2:39][NH2:40])=[CH:35][CH:34]=1.CCN(CC)CC>C(O)C>[F:32][C:33]1[CH:38]=[CH:37][C:36]([CH2:39][NH:40][C:25]([C:23]2[N:24]=[C:13]3[C:12]4([NH:11][C:9](=[O:10])[O:8][CH2:1][C:2]5[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=5)[CH2:18][CH2:17][CH:16]([CH2:19][CH2:20]4)[CH2:15][N:14]3[C:21](=[O:31])[C:22]=2[OH:30])=[O:26])=[CH:35][CH:34]=1

Participants

5

Reactant 3

HCID 8471TriethylamineHCID 673264-FluorobenzylamineHCID 57904801Ethyl 10-(((benzyloxy)carbonyl)amino)-3-hydroxy-4-oxo-4,6,7,8,9,10-hexahydro-7,10-ethanopyrimido[1,2-a]azepine-2-carboxylate

Product 1

HCID 57905202Benzyl (2-((4-fluorobenzyl)carbamoyl)-3-hydroxy-4-oxo-6,7,8,9-tetrahydro-7,10-ethanopyrimido[1,2-a]azepin-10(4H)-yl)carbamate

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent

Conditions

Temperature
90 °C

Procedure

A mixture of ethyl 10-(((benzyloxy)carbonyl)amino)-3-hydroxy-4-oxo-4,6,7,8,9,10-hexahydro-7,10-ethanopyrimido[1,2-a]azepine-2-carboxylate (5.00 g, 11.70 mmol), (4-fluorophenyl)methanamine (2.67 mL, 23.39 mmol) and Et3N (3.26 mL, 23.39 mmol) in ethanol (78 mL) was stirred at 90° C. for 16 h, cooled and concentrated. The resulting pale yellow foam was dissolved in ethyl acetate and washed with 1N HCl. The organic phase was washed with brine, dried (Na2SO4), filtered and concentrated. The residue was taken up in hot ethyl acetate and hexane was added until the solution became slightly cloudy. After cooling, the title compound was collected by filtration as a white solid (4.8203 g, 81% yield). 1H NMR (500 MHz, DMSO-D6) δ: 10.25 (s, 1H), 7.52 (s, 1H), 7.34-7.40 (m, 8H), 7.15-7.21 (m, 2H), 5.72 (s, 1H), 4.91 (s, 2H), 4.40 (d, 2H, J=6.4 Hz), 4.15 (s, 2H), 2.48-2.52 9 m, 2H), 2.02-2.08 (m, 2H), 1.94-1.98 (m, 2H), 1.63-1.70 (m, 2H). LCMS (M+H)=507.42.

Workup

  1. temperaturecooled
  2. concentrationconcentrated
  3. dissolutionThe resulting pale yellow foam was dissolved in ethyl acetate
  4. washwashed with 1N HCl
  5. washThe organic phase was washed with brine
  6. dry with materialdried (Na2SO4)
  7. filtrationfiltered
  8. concentrationconcentrated
  9. additionhexane was added until the solution
  10. temperatureAfter cooling

Sources & evidence

ORD record
ord-fb371f1b72254b92a39eb12d4a9f2262
Source dataset
uspto-grants-2012_03
Patent number
US08129398B2

Reaction notes

Loading…