Dimethylbarbituric acid → 1-[5-tert-Butyl-2-(4-hydroxymethyl-phenyl)-2H-pyrazol-3-yl]-3-{(1S,4R)-4-[3-(4-hydroxy-piperidin-1-yl)-[1,2,4]triazolo[4,3-a]pyridin-6-yloxy]-1,2,3,4-tetrahydro-naphthalen-1-yl}-urea

HRID 630776Notes

Reaction equation

HRID 630776 reaction equation
C([O:4][CH:5]1[CH2:10][CH2:9][N:8]([C:11]2[N:15]3[CH:16]=[C:17]([O:20][C@H:21]4[C:30]5[C:25](=[CH:26][CH:27]=[CH:28][CH:29]=5)[C@@H:24]([NH:31][C:32]([NH:34][C:35]5[N:36]([C:44]6[CH:49]=[CH:48][C:47]([CH2:50][OH:51])=[CH:46][CH:45]=6)[N:37]=[C:38]([C:40]([CH3:43])([CH3:42])[CH3:41])[CH:39]=5)=[O:33])[CH2:23][CH2:22]4)[CH:18]=[CH:19][C:14]3=[N:13][N:12]=2)[CH2:7][CH2:6]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>[C:40]([C:38]1[CH:39]=[C:35]([NH:34][C:32]([NH:31][C@@H:24]2[C:25]3[C:30](=[CH:29][CH:28]=[CH:27][CH:26]=3)[C@H:21]([O:20][C:17]3[CH:18]=[CH:19][C:14]4[N:15]([C:11]([N:8]5[CH2:9][CH2:10][CH:5]([OH:4])[CH2:6][CH2:7]5)=[N:12][N:13]=4)[CH:16]=3)[CH2:22][CH2:23]2)=[O:33])[N:36]([C:44]2[CH:49]=[CH:48][C:47]([CH2:50][OH:51])=[CH:46][CH:45]=2)[N:37]=1)([CH3:43])([CH3:41])[CH3:42]

Participants

5

Reactant 2

HCID 69860Dimethylbarbituric acidHCID 866870611-{(1S,4R)-4-[3-(4-Allyloxy-piperidin-1-yl)-[1,2,4]triazolo[4,3-a]pyridin-6-yloxy]-1,2,3,4-tetrahydro-naphthalen-1-yl}-3-[5-tert-butyl-2-(4-hydroxymethyl-phenyl)-2H-pyrazol-3-yl]-urea

Product 1

HCID 866870601-[5-tert-Butyl-2-(4-hydroxymethyl-phenyl)-2H-pyrazol-3-yl]-3-{(1S,4R)-4-[3-(4-hydroxy-piperidin-1-yl)-[1,2,4]triazolo[4,3-a]pyridin-6-yloxy]-1,2,3,4-tetrahydro-naphthalen-1-yl}-ureaYield 52.4%

Reagents, catalysts & solvents 2

HCID 178418397HCID 178418397, compoundCatalyst2×HCID 6344DichloromethaneSolvent

Procedure

Ar was bubbled through a solution of Intermediate 57c (93.0 mg, 0.135 mmol) and 1,3-dimethyl barbituric acid (63.0 mg, 0.404 mmol) in DCM (5 mL) at RT under Ar for 30 min, then Pd(PPh3)4 (15.6 mg, 0.0135 mmol) was added and the orange solution was stirred at RT for 1 h, and then at reflux for 17 h. The suspension was concentrated in vacuo, the residue redissolved in DCE (10 mL) and Ar bubbled through the mixture for 30 min. Pd(PPh3)4 (15.6 mg, 0.0135 mmol) was added and the opaque orange-red solution stirred at 75° C. under Ar for 2 h. The cooled solution was concentrated in vacuo to 3 mL volume, then applied to an SCX-2 cartridge (5 g) and washed with MeOH (25 mL). The product was eluted with 2M NH3 in MeOH (20 mL); concentration in vacuo left an orange solid. FCC, using 5-15% MeOH in DCM, gave a pale orange solid (46.0 mg). Further purification by HPLC (XBridge C18 column, 20-80% MeCN in H2O, 0.1% NH4OH) gave the title compound as a white powder after freeze-drying (27.1 mg, 31%). LCMS (Method 5): Rt 3.59 min, m/z 651 [MH+]. 1H NMR (400 MHz, d6-DMSO): 1.23 (9H, s), 1.56-1.67 (2H, m), 1.76-1.92 (4H, m), 1.95-2.11 (2H, m), 2.91-2.97 (2H, m), 3.31-3.35 (2H, m), 3.64-3.71 (1H, m), 4.51 (2H, d, J 4.2), 4.70 (1H, d, J 3.9), 4.77 (1H, m), 5.25 (1H, t, J 5.3), 5.50 (1H, t, J 4.4), 6.29 (1H, s), 7.05 (1H, d, J 8.5), 7.10 (1H, dd, J 9.9, 2.1), 7.21-7.25 (2H, m), 7.28-7.34 (2H, m), 7.39 (2H, d, J 9.1), 7.40 (2H, d, J 9.1), 7.56 (1H, dd, J 9.9, 0.8), 7.61 (1H, dd, J 2.1, 0.9), 8.04 (1H, s).

Workup

  1. temperatureat reflux for 17 h
  2. concentrationThe suspension was concentrated in vacuo
  3. dissolutionthe residue redissolved in DCE (10 mL)
  4. customAr bubbled through the mixture for 30 min
  5. stirringthe opaque orange-red solution stirred at 75° C. under Ar for 2 h
  6. concentrationThe cooled solution was concentrated in vacuo to 3 mL volume
  7. washwashed with MeOH (25 mL)
  8. washThe product was eluted with 2M NH3 in MeOH (20 mL)
  9. concentrationconcentration in vacuo
  10. waitleft an orange solid

Sources & evidence

ORD record
ord-1ef8fe24376c48838d930efc4566786f
Source dataset
uspto-grants-2016_04
Patent number
US09315503B2

Reaction notes

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