Cesium carbonate → HCID 70979297, compound

HRID 1485457Notes

Reaction equation

Br[C:2]1[CH:3]=[CH:4][C:5]2[N:11]3[C:12]([CH3:15])=[N:13][N:14]=[C:10]3[C@H:9]([CH3:16])[CH2:8][N:7]([C:17]3[CH:24]=[CH:23][C:20]([C:21]#[N:22])=[CH:19][CH:18]=3)[C:6]=2[CH:25]=1.CC1(C)C(C)(C)OB([C:34]2[CH:35]=[N:36][NH:37][CH:38]=2)O1.C(=O)([O-])[O-].[Cs+].[Cs+]>COCCOC.O.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>[CH3:15][C:12]1[N:11]2[C:5]3[CH:4]=[CH:3][C:2]([C:34]4[CH:35]=[N:36][NH:37][CH:38]=4)=[CH:25][C:6]=3[N:7]([C:17]3[CH:18]=[CH:19][C:20]([C:21]#[N:22])=[CH:23][CH:24]=3)[CH2:8][C@@H:9]([CH3:16])[C:10]2=[N:14][N:13]=1

Participants

Conditions

Temperature: 130 °C

Procedure

To a solution of (R)-4-(8-bromo-1,4-dimethyl-4H-benzo[b][1,2,4]triazolo[4,3-d][1,4]diazepin-6(5H)-yl)benzonitrile (100 mg, 0.26 mmol) in DME/H2O (3:1, 2 mL) was added 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole (70 mg, 0.36 mmol), cesium carbonate (164 mg, 0.50 mmol) and Tetrakis(triphenylphosphine)palladium(0)(22 mg, 0.02 mmol). The mixture was stirred in the microwave at 130° C. for 20 min. The reaction mixture was concentrated and purified by prep-TLC (elute: DCM:MeOH=15:1) to give (R)-4-(1,4-dimethyl-8-(1H-pyrazol-4-yl)-4H-benzo[b][1,2,4]triazolo[4,3-d][1,4]diazepin-6(5H)-yl)benzonitrile (15 mg, 15%).

Workup

concentrationThe reaction mixture was concentrated
custompurified by prep-TLC (elute: DCM:MeOH=15:1)

Sources & evidence

ORD record: ord-d6f37fcde32f42e4950c6707e282768f
Source dataset: uspto-grants-2016_08
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09422292B2

Reaction notes

Loading…