Triethylamine → HCID 136380184, compound

HRID 1091736Notes

Reaction equation

HRID 1091736 reaction equation
[CH3:1][C:2]1[NH:3][C:4]([CH3:22])=[C:5]2[C:10]=1[C:9]([CH2:11][C:12]1[CH:13]=[C:14]([CH:18]=[CH:19][CH:20]=1)[C:15]([OH:17])=O)=[N:8][NH:7][C:6]2=[O:21].[CH2:23]([O:25][CH:26]1[CH2:31][CH2:30][NH:29][CH2:28][CH2:27]1)[CH3:24].C(N(CC)CC)C>CN(C=O)C>[CH2:23]([O:25][CH:26]1[CH2:31][CH2:30][N:29]([C:15]([C:14]2[CH:13]=[C:12]([CH:20]=[CH:19][CH:18]=2)[CH2:11][C:9]2[C:10]3[C:5](=[C:4]([CH3:22])[NH:3][C:2]=3[CH3:1])[C:6](=[O:21])[NH:7][N:8]=2)=[O:17])[CH2:28][CH2:27]1)[CH3:24]

Participants

5

Reactant 3

HCID 8471TriethylamineHCID 115065194-EthoxypiperidineHCID 136101881HCID 136101881, compound

Product 1

HCID 136380184HCID 136380184, compoundYield 22.5%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

2-(1H-Benzo[d][1,2,3]triazol-1-yl)-1,1,3,3-tetramethylisouronium hexafluorophosphate(V) (0.163 g, 0.43 mmol) was added to 3-((5,7-dimethyl-1-oxo-2,6-dihydro-1H-pyrrolo[3,4-d]pyridazin-4-yl)methyl)benzoic acid (51) (0.091 g, 0.31 mmol), 4-ethoxypiperidine (0.044 g, 0.34 mmol) and triethylamine (0.107 mL, 0.77 mmol) in DMF (2 mL). The resulting solution was stirred at room temperature for 16 hours. The crude product was purified by preparative HPLC (Waters XBridge Prep C18 OBD column, 5μ silica, 19 mm diameter, 100 mm length), using decreasingly polar mixtures of water (containing 1% NH3) and MeCN as eluents. Fractions containing the desired compound were evaporated to dryness to afford the desired material (0.028 g, 22.5% yield). 1H NMR (400.132 MHz, DMSO) δ 1.11 (3H, t), 1.16-1.95 (4H, m), 2.24 (3H, s), 2.51 (3H, s), 2.99-3.26 (2H, m), 3.33-3.54 (4H, m), 3.85-4.01 (1H, m), 4.09 (2H, s), 7.14 (1H, s), 7.20 (1H, d), 7.27 (1H, d), 7.35 (1H, t), 11.08 (1H, s), 11.92 (1H, s); m/z (LC-MS, ESI+), RT=1.53 min (M+H=409.13).

Workup

  1. customThe crude product was purified by preparative HPLC (Waters XBridge Prep C18 OBD column, 5μ silica, 19 mm diameter, 100 mm length)
  2. additionFractions containing the desired compound
  3. customwere evaporated to dryness

Sources & evidence

ORD record
ord-174a69c6be5445f09d96c97e06c00046
Source dataset
uspto-grants-2012_03
Patent number
US08129380B2

Reaction notes

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