4-Methylmorpholine → (S)-3-((4-(4-(pyrrolidine-1-carbonyl)phenyl)piperazin-1-yl)methyl)-6a,7,8,9-tetrahydropyrido[3,2-e]pyrrolo[1,2-a]pyrazin-6(5H)-one

HRID 2097944Notes

Reaction equation

HRID 2097944 reaction equation
[O:1]=[C:2]1[NH:7][C:6]2[CH:8]=[C:9]([CH2:12][N:13]3[CH2:18][CH2:17][N:16]([C:19]4[CH:27]=[CH:26][C:22]([C:23]([OH:25])=O)=[CH:21][CH:20]=4)[CH2:15][CH2:14]3)[CH:10]=[N:11][C:5]=2[N:4]2[CH2:28][CH2:29][CH2:30][C@@H:3]12.[NH:31]1[CH2:35][CH2:34][CH2:33][CH2:32]1.CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.CN1CCOCC1>CN(C=O)C>[N:31]1([C:23]([C:22]2[CH:21]=[CH:20][C:19]([N:16]3[CH2:15][CH2:14][N:13]([CH2:12][C:9]4[CH:10]=[N:11][C:5]5[N:4]6[CH2:28][CH2:29][CH2:30][C@H:3]6[C:2](=[O:1])[NH:7][C:6]=5[CH:8]=4)[CH2:18][CH2:17]3)=[CH:27][CH:26]=2)=[O:25])[CH2:35][CH2:34][CH2:33][CH2:32]1

Participants

6

Reactant 4

HCID 79724-MethylmorpholineHCID 31268PyrrolidineHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 58324409(S)-4-(4-((6-oxo-5,6,6a,7,8,9-hexahydropyrido[3,2-e]pyrrolo[1,2-a]pyrazin-3-yl)methyl)piperazin-1-yl)benzoic acid

Product 1

HCID 58324416(S)-3-((4-(4-(pyrrolidine-1-carbonyl)phenyl)piperazin-1-yl)methyl)-6a,7,8,9-tetrahydropyrido[3,2-e]pyrrolo[1,2-a]pyrazin-6(5H)-oneYield 26%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

In a 1 dram vial, (S)-4-(4-((6-oxo-5,6,6a,7,8,9-hexahydropyrido[3,2-e]pyrrolo[1,2-a]pyrazin-3-yl)methyl)piperazin-1-yl)benzoic acid (100 mg, 0.245 mmol) was suspended in DMF (Volume: 1.227 mL) then added pyrrolidine (0.024 mL, 0.295 mmol), HATU (140 mg, 0.368 mmol) and N-methylmorpholine (0.108 mL, 0.982 mmol). The rxn was stirred at RT overnight. The mixture was purified by prep HPLC-MS (acidic mode, 15-35%). The pH of the combined fractions was adjusted to pH=8-9 and extracted with EtOAc (3×30 ml), washed with brine, dried with MgSO4, filtered and concentrated to dryness. The residue was taken up with water/ACN (1:1), and concentrated in vacuo to provide the title compound as a fluffy white solid (29 mg, 26% yield). m.p.=121.3° C. 1H NMR (400 MHz, DMSO-d6) δ ppm 1.73-1.87 (m, 4 H) 1.87-2.01 (m, 3 H) 2.14-2.21 (m, 1 H) 2.43-2.49 (m, 4 H) 3.15-3.23 (m, 4 H) 3.35 (br. s., 2 H) 3.37-3.49 (m, 5 H) 3.54-3.65 (m, 1 H) 3.95-4.04 (m, 1 H) 6.91 (d, J=9.09 Hz, 2 H) 6.99 (d, J=2.02 Hz, 1 H) 7.42 (d, J=8.84 Hz, 2 H) 7.62 (d, J=1.77 Hz, 1 H) 10.44 (s, 1 H). [M+H] calc'd for C26H32N6O2, 461; found, 461.

Workup

  1. customThe mixture was purified by prep HPLC-MS (acidic mode, 15-35%)
  2. extractionextracted with EtOAc (3×30 ml)
  3. washwashed with brine
  4. dry with materialdried with MgSO4
  5. filtrationfiltered
  6. concentrationconcentrated to dryness
  7. concentrationconcentrated in vacuo

Sources & evidence

ORD record
ord-1236f49684cd46bf94aa65106e3ed1db
Source dataset
uspto-grants-2013_05
Patent number
US08450323B2

Reaction notes

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