Diisopropylethylamine → HCID 46200515, compound

HRID 1930564Notes

Reaction equation

HRID 1930564 reaction equation
[O:1]1[C:5]([C:6]2[CH:11]=[CH:10][C:9]([NH:12][C:13]3[N:14]=[C:15]([N:23]([C:27]4[CH:32]=[CH:31][CH:30]=[CH:29][CH:28]=4)[CH2:24][CH2:25][OH:26])[C:16]4[CH2:22][NH:21][CH2:20][CH2:19][C:17]=4[N:18]=3)=[CH:8][CH:7]=2)=[CH:4][N:3]=[CH:2]1.C(N(C(C)C)C(C)C)C.F[P-](F)(F)(F)(F)F.N1(OC(N(C)C)=[N+](C)C)C2C=CC=CC=2N=N1.[C:66](O)(=[O:70])[C@H:67]([CH3:69])[OH:68]>CN(C=O)C>[OH:68][C@@H:67]([CH3:69])[C:66]([N:21]1[CH2:20][CH2:19][C:17]2[N:18]=[C:13]([NH:12][C:9]3[CH:10]=[CH:11][C:6]([C:5]4[O:1][CH:2]=[N:3][CH:4]=4)=[CH:7][CH:8]=3)[N:14]=[C:15]([N:23]([CH2:24][CH2:25][OH:26])[C:27]3[CH:28]=[CH:29][CH:30]=[CH:31][CH:32]=3)[C:16]=2[CH2:22]1)=[O:70]

Participants

6

Reactant 4

HCID 81531DiisopropylethylamineHCID 107689L-Lactic AcidHCID 2733084Methanaminium, N-((1H-benzotriazol-1-yloxy)(dimethylamino)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 462000502-((2-(4-(Oxazol-5-yl)phenylamino)-5,6,7,8-tetrahydropyrido[4,3-d]pyrimidin-4-yl)(phenyl)amino)ethanol

Product 1

HCID 46200515HCID 46200515, compoundYield 26.1%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

2-((2-(4-(Oxazol-5-yl)phenylamino)-5,6,7,8-tetrahydropyrido[4,3-d]pyrimidin-4-yl)(phenyl)amino)ethanol (100 mg, 0.23 mmol, Example 1) was dissolved in DMF (5 mL). N-Ethyldiisopropylamine (0.081 mL, 0.47 mmol) was added followed by O-(1H-Benzotriazol-1-yl)-N,N,N′,N′-tetramethyluronium hexafluorophosphate (115 mg, 0.30 mmol) and L-lactic acid (21.02 mg, 0.23 mmol). The reaction mixture was stirred at room temperature overnight. The solvent was evaporated under reduced pressure, the crude dissolved in MeOH and acetonitrile, filtered and purified by preparative HPLC yielding (S)-2-hydroxy-1-(4-((2-hydroxyethyl)(phenyl)amino)-2-(4-(oxazol-5-yl)phenylamino)-7,8-dihydropyrido[4,3-d]pyrimidin-6(5H)-yl)propan-1-one (30.0 mg, 26%).

Workup

  1. customThe solvent was evaporated under reduced pressure
  2. dissolutionthe crude dissolved in MeOH
  3. filtrationacetonitrile, filtered
  4. custompurified by preparative HPLC

Sources & evidence

ORD record
ord-e80d5cd7910245f0b51b5e87ebb06c60
Source dataset
uspto-grants-2012_05
Patent number
US08188101B2

Reaction notes

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