Hydrochloric Acid → 2-{6-[3(R)-Amino-piperidin-1-yl]-5-chloro-2,4-dioxo-3,4-dihydro-2H-pyrimidin-1-ylmethyl}-benzonitrile

HRID 1515163Notes

Reaction equation

HRID 1515163 reaction equation
[NH2:1][C@@H:2]1[CH2:7][CH2:6][CH2:5][N:4]([C:8]2[N:13]([CH2:14][C:15]3[CH:22]=[CH:21][CH:20]=[CH:19][C:16]=3[C:17]#[N:18])[C:12](=[O:23])[N:11](C)[C:10](=[O:25])[CH:9]=2)[CH2:3]1.[ClH:26]>C1COCC1.O1CCOCC1>[NH2:1][C@@H:2]1[CH2:7][CH2:6][CH2:5][N:4]([C:8]2[N:13]([CH2:14][C:15]3[CH:22]=[CH:21][CH:20]=[CH:19][C:16]=3[C:17]#[N:18])[C:12](=[O:23])[NH:11][C:10](=[O:25])[C:9]=2[Cl:26])[CH2:3]1

Participants

5

Reactant 2

HCID 313Hydrochloric AcidHCID 11450633Alogliptin

Product 1

HCID 112105882-{6-[3(R)-Amino-piperidin-1-yl]-5-chloro-2,4-dioxo-3,4-dihydro-2H-pyrimidin-1-ylmethyl}-benzonitrile

Reagents, catalysts & solvents 2

HCID 8028TetrahydrofuranSolventHCID 312751,4-DioxaneSolvent

Procedure

Compound 4 (100 mg) in THF (2 mL) was treated with 4M HCl in dioxane (1 mL) at RT for 1 h, concentrated, and then purified by LC-MS to give the title compound. 1H-NMR (400 MHz, DMSO-D6): 8 ppm 12.0 (s, 1H), 7.88 (d, J=7.6 Hz, 1 H), 7.68 (t, J=7.7 Hz, 1 H), 7.49 (t, J=7.7 Hz, 1 H), 7.36 (d, J=7.8 Hz, 1 H), 5.09-5.21 (m, 2 H), 3.17 (m, 2 H), 2.96 (t, J=11.1 Hz, 1 H), 2.86 (d, J=10.6 Hz, 1 H), 2.65 (m, 1 H), 1.90 (d, J=11.6 Hz, 1 H), 1.57 (d, J=13.1 Hz, 1 H), 1.19-1.31 (m, 1 H), 1.03-1.15 (m, 1 H). MS (ES) [m+H] calc'd for C17H19ClN5O2, 360.1; found, 360.1.

Workup

  1. concentrationconcentrated
  2. custompurified by LC-MS

Sources & evidence

ORD record
ord-b4f024e8d1ea4dde84e2103bf6da0f7c
Source dataset
uspto-grants-2012_07
Patent number
US08222411B2

Reaction notes

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