Water → HCID 58204341, compound

HRID 2044742Notes

Reaction equation

HRID 2044742 reaction equation
Br[C:2]1[CH:3]=[CH:4][C:5]2[O:11][CH2:10][CH2:9][N:8]3[CH:12]=[C:13]([C:15]4[N:19]([CH:20]([CH3:22])[CH3:21])[N:18]=[C:17]([NH2:23])[N:16]=4)[N:14]=[C:7]3[C:6]=2[CH:24]=1.[C:25]1(B(O)O)[CH:30]=[CH:29][CH:28]=[CH:27][CH:26]=1.C([O-])([O-])=O.[Cs+].[Cs+].O>O1CCOCC1.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.Cl[Pd]Cl.[Fe+2]>[CH:20]([N:19]1[C:15]([C:13]2[N:14]=[C:7]3[C:6]4[CH:24]=[C:2]([C:25]5[CH:30]=[CH:29][CH:28]=[CH:27][CH:26]=5)[CH:3]=[CH:4][C:5]=4[O:11][CH2:10][CH2:9][N:8]3[CH:12]=2)=[N:16][C:17]([NH2:23])=[N:18]1)([CH3:22])[CH3:21]

Participants

7

Reactant 4

HCID 962WaterHCID 10796Cesium carbonateHCID 66827Phenylboronic AcidHCID 67050691HCID 67050691, compound

Product 1

HCID 58204341HCID 58204341, compoundYield 18%

Reagents, catalysts & solvents 2

HCID 178418228Bis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+)CatalystHCID 312751,4-DioxaneSolvent

Conditions

Temperature
130 °C

Procedure

A mixture of 5-(10-bromo-5,6-dihydrobenzo[f]imidazo[1,2-d][1,4]oxazepin-2-yl)-1-isopropyl-1H-1,2,4-triazol-3-amine (0.5 mmol), phenylboronic acid (200 mg, 0.75 mmol), Cs2CO3 (490 mg, 1.5 mmol) was stirred in dioxane and water (5:1, 3.0 mL) followed by the addition of Pd(dppf)Cl2 (30 mg). The reaction mixture was bubbled with N2 gas for 10 min, the reaction tube was sealed, and the contents were stirred at 130° C. under microwave irradiation for 30 min. The mixture was filtered through celite and the filtrate was concentrated and purified with prep-HPLC to give 556 (31 mg, 18%). 1H-NMR (DMSO, 400 MHz): δ 8.68 (s, 1H), 8.16 (s, 1H), 7.64-7.68 (m, 3H), 7.38-7.50 (m, 2H), 7.34-7.37 (m, 1H), 7.17 (d, J=8.4 Hz, 2H), 5.49-5.55 (m, 1H), 4.54-4.60 (m, 4H), 1.46 (d, J=6.8 Hz, 6H)

Workup

  1. customThe reaction mixture was bubbled with N2 gas for 10 min
  2. customthe reaction tube was sealed
  3. filtrationThe mixture was filtered through celite
  4. concentrationthe filtrate was concentrated
  5. custompurified with prep-HPLC

Sources & evidence

ORD record
ord-db969e8420614eec9d98bebb0088adc2
Source dataset
uspto-grants-2013_11
Patent number
US08586574B2

Reaction notes

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