Hydrogen Bromide → HCID 59344730, compound

HRID 18024Notes

Reaction equation

HRID 18024 reaction equation
[Cl:1][C:2]1[CH:3]=[C:4]([CH:29]=[CH:30][C:31]=1[F:32])[CH2:5][N:6]1[CH2:15][CH2:14][C:13]2[C:8](=[C:9]([O:26]C)[C:10](=[O:25])[N:11]3[CH2:21][CH2:20][C:19](=[O:22])[CH2:18][N:17]([CH3:23])[C:16](=[O:24])[C:12]3=2)[C:7]1=[O:28].Br>C(O)(=O)C.O1CCOCC1>[Cl:1][C:2]1[CH:3]=[C:4]([CH:29]=[CH:30][C:31]=1[F:32])[CH2:5][N:6]1[CH2:15][CH2:14][C:13]2[C:8](=[C:9]([OH:26])[C:10](=[O:25])[N:11]3[CH2:21][CH2:20][C:19](=[O:22])[CH2:18][N:17]([CH3:23])[C:16](=[O:24])[C:12]3=2)[C:7]1=[O:28]

Participants

5

Reactant 2

HCID 260Hydrogen BromideHCID 6725311811-(3-Chloro-4-fluorobenzyl)-9-methoxy-2-methyl-5,6,12,13-tetrahydro-2h[1,4]diazocino[2,1-a]-2,6-naphthyridine-1,4,8,10(3h, 11h)-tetrone

Product 1

HCID 59344730HCID 59344730, compound

Reagents, catalysts & solvents 2

HCID 176Acetic AcidSolventHCID 312751,4-DioxaneSolvent

Procedure

A mixture of 11-(3-chloro-4-fluorobenzyl)-9-methoxy-2-methyl-5,6,12,13-tetrahydro-2H[1,4]diazocino[2,1-a]-2,6-naphthyridine-1,4,8,10(3H, 11H)-tetrone (25 mg, 0.05 mmol) and 33% hydrogen bromide in acetic acid (0.5 mL) in dioxane (1 mL) was stirred at room temperature for 1.5 hour. The product mixture was concentrated under vacuum. The residue was dissolved in DMSO and subjected to reverse phase column chromatography on C-18 stationary phase eluted with a 95-5% water-acetonitrile gradient. Collection and lyophilization of appropriate fractions afforded the title compound. 1H NMR (400 MHz, CDCl3) δ 13.47 (s, 1H), 7.38 (d, J=6.0 Hz, 1H), 7.19 (m, 1H), 7.12 (t, J=8.2 Hz, 1H), 5.56 (br s, 1H), 4.94 (br m, 1H), 4.23 (br m, 2H), 4.16-3.98 (m, 2H), 3.60 (br d, J=8.1 Hz, 1H), 3.51 (br d, J=10.2 Hz, 1H), 3.24 (br signal, 1H), 2.89 (s, 3H), 2.59 (br signal, 1H). (ES MS M+1=448.0)

Workup

  1. concentrationThe product mixture was concentrated under vacuum
  2. dissolutionThe residue was dissolved in DMSO
  3. washeluted with a 95-5% water-acetonitrile gradient
  4. customCollection and lyophilization of appropriate fractions

Sources & evidence

ORD record
ord-3bd2d1bc1d8a4a3490200d3645670f9b
Source dataset
uspto-grants-2010_06
Patent number
US07741315B2

Reaction notes

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