Triethylamine → (5S)-9-Bromo-5-[p-tert-butoxycarbonylaminomethyl-o-(1-methoxycarbonyl-1acetoxymethyl) phenylcarbamoylmethyl]-6,7-dihydro-1H, 5H-pyrido[1,2,3-de]quinoxaline-2,3-dione

HRID 862590Notes

Reaction equation

HRID 862590 reaction equation
[C:1]([O:5][C:6]([NH:8][CH2:9][C:10]1[CH:16]=[CH:15][C:13]([NH2:14])=[C:12]([CH:17]([C:22]([O:24][CH3:25])=[O:23])[O:18][C:19](=[O:21])[CH3:20])[CH:11]=1)=[O:7])([CH3:4])([CH3:3])[CH3:2].[Br:26][C:27]1[CH:28]=[C:29]2[CH2:41][CH2:40][C@@H:39]([CH2:42][C:43](O)=[O:44])[N:31]3[C:32](=[O:38])[C:33](=[O:37])[NH:34][C:35]([CH:36]=1)=[C:30]23.C(N(CC)CC)C.C1N(P(Cl)(N2C(=O)OCC2)=O)C(=O)OC1>ClCCl.C(OCC)(=O)C>[Br:26][C:27]1[CH:28]=[C:29]2[CH2:41][CH2:40][C@@H:39]([CH2:42][C:43](=[O:44])[NH:14][C:13]3[CH:15]=[CH:16][C:10]([CH2:9][NH:8][C:6]([O:5][C:1]([CH3:4])([CH3:2])[CH3:3])=[O:7])=[CH:11][C:12]=3[CH:17]([C:22]([O:24][CH3:25])=[O:23])[O:18][C:19](=[O:21])[CH3:20])[N:31]3[C:32](=[O:38])[C:33](=[O:37])[NH:34][C:35]([CH:36]=1)=[C:30]23

Participants

7

Reactant 4

HCID 8471TriethylamineHCID 152842Bis(2-oxo-3-oxazolidinyl)phosphinic chlorideHCID 10088544(S)-9-bromo-5-carboxymethyl-6,7-dihydro-1H, 5H-pyrido[1,2,3-de]quinoxaline-2,3-dioneHCID 196983614-Tert-butoxycarbonylaminomethyl-2-(1-methoxycarbonyl-1-acetoxymethyl) aniline

Product 1

HCID 131720488(5S)-9-Bromo-5-[p-tert-butoxycarbonylaminomethyl-o-(1-methoxycarbonyl-1acetoxymethyl) phenylcarbamoylmethyl]-6,7-dihydro-1H, 5H-pyrido[1,2,3-de]quinoxaline-2,3-dioneYield 50.5%

Reagents, catalysts & solvents 2

HCID 6344DichloromethaneSolventHCID 8857Ethyl AcetateSolvent

Procedure

A mixture of 4-tert-butoxycarbonylaminomethyl-2-(1-methoxycarbonyl-1-acetoxymethyl)aniline (500 mg, 1 mmol), (S)-9-bromo-5-carboxymethyl-6,7-dihydro-1H, 5H-pyrido[1,2,3-de]quinoxaline-2,3-dione (475 mg, 1.4 mmol), triethylamine (0.55 mL), and Bop-Cl (360 mg, 1.4 mmol) in dichloromethane (15 mL) was stirred for 48 h at room temperature and diluted with ethyl acetate (200 mL). The mixture was washed with 5% potassium hydrogen sulfate, water, 1/15 phosphate buffer (pH 7.5), water, and brine, successively, dried over magnesium sulfate, and concentrated. The residue was purified by silica gel column chromatography with 0.3% acetic acid/ethyl acetate to give 340 mg of the title compound (50%).

Workup

  1. washThe mixture was washed with 5% potassium hydrogen sulfate, water, 1/15 phosphate buffer (pH 7.5), water, and brine
  2. dry with materialsuccessively, dried over magnesium sulfate
  3. concentrationconcentrated
  4. customThe residue was purified by silica gel column chromatography with 0.3% acetic acid/ethyl acetate

Sources & evidence

ORD record
ord-3114d4df04cb4b4c9660733f599dc79a
Source dataset
uspto-grants-1998_02
Patent number
US05719152

Reaction notes

Loading…