Methylamine → (R)-3-(5-chloro-1-(5-methyl-6,7-dihydro-5H-cyclopenta[d]pyrimidin-4-yl)spiro[indoline-3,4'-piperidine]-1'-yl)propan-1-amine

HRID 2190033Notes

Reaction equation

HRID 2190033 reaction equation
[Cl:1][C:2]1[CH:3]=[C:4]2[C:10]3([CH2:15][CH2:14][N:13]([CH2:16][CH2:17][CH2:18][N:19]4C(=O)C5C(=CC=CC=5)C4=O)[CH2:12][CH2:11]3)[CH2:9][N:8]([C:30]3[C:31]4[C@H:38]([CH3:39])[CH2:37][CH2:36][C:32]=4[N:33]=[CH:34][N:35]=3)[C:5]2=[CH:6][CH:7]=1.CN>CO>[Cl:1][C:2]1[CH:3]=[C:4]2[C:10]3([CH2:11][CH2:12][N:13]([CH2:16][CH2:17][CH2:18][NH2:19])[CH2:14][CH2:15]3)[CH2:9][N:8]([C:30]3[C:31]4[C@H:38]([CH3:39])[CH2:37][CH2:36][C:32]=4[N:33]=[CH:34][N:35]=3)[C:5]2=[CH:6][CH:7]=1

Participants

4

Reactant 2

HCID 6329MethylamineHCID 68764576(R)-2-(3-(5-chloro-1-(5-methyl-6,7-dihydro-5H-cyclopenta[d]pyrimidin-4-yl)spiro[indoline-3,4'-piperidine]-1'-yl)propyl)isoindoline-1,3-dione

Product 1

HCID 44198402(R)-3-(5-chloro-1-(5-methyl-6,7-dihydro-5H-cyclopenta[d]pyrimidin-4-yl)spiro[indoline-3,4'-piperidine]-1'-yl)propan-1-amine

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent

Procedure

A mixture of (R)-2-(3-(5-chloro-1-(5-methyl-6,7-dihydro-5H-cyclopenta[d]pyrimidin-4-yl)spiro[indoline-3,4′-piperidine]-1′-yl)propyl)isoindoline-1,3-dione (9 mg, 0.02 mmol) and 2M MeNH2 in MeOH (0.5 mL) was stirred at about room temperature overnight. The solvent was evaporated. The residue was purified by column chromatography (DCM:7N ammonia in MeOH, 8:1) to give (R)-3-(5-chloro-1-(5-methyl-6,7-dihydro-5H-cyclopenta[d]pyrimidin-4-yl)spiro[indoline-3,4′-piperidine]-1′-yl)propan-1-amine as a free base, which was taken up in DCM and acidified with 2N HCl in ether. Removal of the solvents under reduced pressure afforded (R)-3-(5-chloro-1-(5-methyl-6,7-dihydro-5H-cyclopenta[d]pyrimidin-4-yl)spiro[indoline-3,4′-piperidine]-1′-yl)propan-1-amine trihydrochloride (5 mg, 74%) as a solid. LCMS (APCI+) m/z 412, 414 [M+H]+; Rt=2.47 min.

Workup

  1. customThe solvent was evaporated
  2. customThe residue was purified by column chromatography (DCM:7N ammonia in MeOH, 8:1)

Sources & evidence

ORD record
ord-ef0f014d4d594a2d86566ca9fbe5f258
Source dataset
uspto-grants-2012_12
Patent number
US08324221B2

Reaction notes

Loading…