3-Oxetanone → (R)-6-(5-isopropyl-2-methylphenyl)-2-(3-methyl-1-tosyl-1H-indol-4-yl)-4-(3-methyl-4-(oxetan-3-yl)piperazin-1-yl)-5,6,7,8-tetrahydropyrido[4,3-d]pyrimidine

HRID 80793

Reaction equation

HRID 80793 reaction equation
[CH:1]([C:4]1[CH:5]=[CH:6][C:7]([CH3:47])=[C:8]([N:10]2[CH2:46][CH2:45][C:13]3[N:14]=[C:15]([C:25]4[CH:33]=[CH:32][CH:31]=[C:30]5[C:26]=4[C:27]([CH3:44])=[CH:28][N:29]5[S:34]([C:37]4[CH:43]=[CH:42][C:40]([CH3:41])=[CH:39][CH:38]=4)(=[O:36])=[O:35])[N:16]=[C:17]([N:18]4[CH2:23][CH2:22][NH:21][C@H:20]([CH3:24])[CH2:19]4)[C:12]=3[CH2:11]2)[CH:9]=1)([CH3:3])[CH3:2].[O:48]1[CH2:51][C:50](=O)[CH2:49]1>C(Cl)Cl.CCOC(C)=O>[CH:1]([C:4]1[CH:5]=[CH:6][C:7]([CH3:47])=[C:8]([N:10]2[CH2:46][CH2:45][C:13]3[N:14]=[C:15]([C:25]4[CH:33]=[CH:32][CH:31]=[C:30]5[C:26]=4[C:27]([CH3:44])=[CH:28][N:29]5[S:34]([C:37]4[CH:38]=[CH:39][C:40]([CH3:41])=[CH:42][CH:43]=4)(=[O:35])=[O:36])[N:16]=[C:17]([N:18]4[CH2:23][CH2:22][N:21]([CH:50]5[CH2:51][O:48][CH2:49]5)[C@H:20]([CH3:24])[CH2:19]4)[C:12]=3[CH2:11]2)[CH:9]=1)([CH3:3])[CH3:2]

Participants

5

Reactant 2

HCID 150242543-Oxetanone2×HCID 71240422(R)-6-(5-isopropyl-2-methylphenyl)-2-(3-methyl-1-tosyl-1H-indol-4-yl)-4-(3-methylpiperazin-1-yl)-5,6,7,8-tetrahydropyrido[4,3-d]pyrimidine

Product 1

HCID 86690258(R)-6-(5-isopropyl-2-methylphenyl)-2-(3-methyl-1-tosyl-1H-indol-4-yl)-4-(3-methyl-4-(oxetan-3-yl)piperazin-1-yl)-5,6,7,8-tetrahydropyrido[4,3-d]pyrimidine

Reagents, catalysts & solvents 2

HCID 6344DichloromethaneSolventHCID 8857Ethyl AcetateSolvent

Procedure

A mixture of (R)-6-(5-isopropyl-2-methylphenyl)-2-(3-methyl-1-tosyl-1H-indol-4-yl)-4-(3-methylpiperazin-1-yl)-5,6,7,8-tetrahydropyrido[4,3-d]pyrimidine (53 mg, 0.082 mmol), oxetan-3-one (17.6 mg, 0.245 mmol) and Na(AcO)3BH (51.9 mg, 0.245 mmol) in DCM (3 mL) was stirred at rt for 3 h. At that point starting material remained so additional oxetan-3-one (17.7 mg, 0.245 mmol) and Na(AcO)3BH (51.9 mg, 0.245 mmol) were added and the reaction stirred for 16 h. The mixture was then diluted with EtOAc, washed with sat NaHCO3 and brine. The organic layer was then dried over Na2SO4, filtered and concentrated. The residue was purified by FCC (5-65% EtOAc/heptane) to provide (R)-6-(5-isopropyl-2-methylphenyl)-2-(3-methyl-1-tosyl-1H-indol-4-yl)-4-(3-methyl-4-(oxetan-3-yl)piperazin-1-yl)-5,6,7,8-tetrahydropyrido[4,3-d]pyrimidine. MS (ESI+) m/z 705.5 (M+H)+.

Workup

  1. additionwere added
  2. stirringthe reaction stirred for 16 h
  3. washwashed
  4. dry with materialThe organic layer was then dried over Na2SO4
  5. filtrationfiltered
  6. concentrationconcentrated
  7. customThe residue was purified by FCC (5-65% EtOAc/heptane)

Sources & evidence

ORD record
ord-003e705f9c49490487ac5830cad08788
Source dataset
uspto-grants-2014_09
Patent number
US08846656B2

Linked notes

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