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Dimethylbarbituric acid → HCID 60197482, compound

HRID 2408683
Notes
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Reaction equation

HRID 2408683 reaction equation
C([N:4]1[CH2:27][CH2:26][C:7]2[N:8]([CH2:16][C:17]([C:20]3[CH:25]=[CH:24][N:23]=[CH:22][CH:21]=3)([OH:19])[CH3:18])[C:9]3[CH:10]=[CH:11][C:12]([Cl:15])=[CH:13][C:14]=3[C:6]=2[CH2:5]1)C=C.CN1C(=O)CC(=O)N(C)C1=O>C(Cl)Cl.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[Cl:15][C:12]1[CH:11]=[CH:10][C:9]2[N:8]([CH2:16][C:17]([C:20]3[CH:25]=[CH:24][N:23]=[CH:22][CH:21]=3)([OH:19])[CH3:18])[C:7]3[CH2:26][CH2:27][NH:4][CH2:5][C:6]=3[C:14]=2[CH:13]=1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 2

HCID 69860Dimethylbarbituric acidHCID 68283605HCID 68283605, compound

Product 1

HCID 60197482HCID 60197482, compound

Reagents, catalysts & solvents 2

HCID 178418397HCID 178418397, compoundCatalystHCID 6344DichloromethaneSolvent2×

Procedure

To a degassed solution of 1-(2-allyl-8-chloro-1,2,3,4-tetrahydro-pyrido[4,3-b]indol-5-yl)-2-pyridin-4-yl-propan-2-ol (300 mg, 0.78 mmol) in DCM (20 mL) were added 1,3-dimethyl barbituric acid (368 mg, 2.3 mmol) and Pd(PPh3)4 (18 mg, 0.015 mmol). After stirring at RT for 30 min, the reaction mixture was diluted with DCM and washed with saturated potassium carbonate solution. The organic layer was dried over anhydrous sodium sulfate and concentrated under reduced pressure. The residue was purified by reverse phase HPLC to yield 1-(8-chloro-1,2,3,4-tetrahydro-pyrido[4,3-b]indol-5-yl)-2-pyridin-4-yl-propan-2-ol. 1H NMR (CD3OD, formate salt) δ (ppm): 8.4 (d, 2H), 7.48 (d, 2H), 7.4 (s, 1H), 7.18 (d, 1H), 6.98 (d, 1H), 4.6 (bs, 1H), 4.4 (s, 2H), 4.3 (m, 2H), 3.6 (m, 2H), 3.4 (m, 2H), 3.1 (m, 2H). Separation by chiral HPLC provides enantiomers II-62a-b.

Workup

  1. washwashed with saturated potassium carbonate solution
  2. dry with materialThe organic layer was dried over anhydrous sodium sulfate
  3. concentrationconcentrated under reduced pressure
  4. customThe residue was purified by reverse phase HPLC

Sources & evidence

ORD record
ord-25ef942fc3f4465e9558f5e23df11948
Source dataset
uspto-grants-2014_08
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US08815843B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes