Potassium Phosphate, Tribasic → HCID 86669684, compound

HRID 1623943Notes

Reaction equation

[OH:1][CH2:2][C:3]([NH:6][C:7]([C:9]1[C:10]2[CH2:11][C@H:12]3[CH2:24][C@H:13]3[C:14]=2[N:15]([C:17]2[CH:22]=[CH:21][C:20](Br)=[CH:19][N:18]=2)[N:16]=1)=[O:8])([CH3:5])[CH3:4].[CH:25]1(B(O)O)[CH2:27][CH2:26]1.P([O-])([O-])([O-])=O.[K+].[K+].[K+].C1(P(C2CCCCC2)C2CCCCC2)CCCCC1>C1(C)C=CC=CC=1.O.C([O-])(=O)C.[Pd+2].C([O-])(=O)C>[OH:1][CH2:2][C:3]([NH:6][C:7]([C:9]1[C:10]2[CH2:11][C@H:12]3[CH2:24][C@H:13]3[C:14]=2[N:15]([C:17]2[CH:22]=[CH:21][C:20]([CH:25]3[CH2:27][CH2:26]3)=[CH:19][N:18]=2)[N:16]=1)=[O:8])([CH3:5])[CH3:4]

Participants

Conditions

Temperature: 100 °C

Procedure

To a mixture of (1aR,5aR)-2-(5-bromo-pyridin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid (2-hydroxy-1,1-dimethyl-ethyl)-amide (0.030 g, 0.077 mmol), cyclopropylboronic acid (0.020 g, 0.230 mmol), potassium phosphate (0.049 g, 0.230 mmol) and tricyclohexylphosphine (4.30 mg, 0.015 mmol) in toluene/H2O (1.5 mL/0.050 mL) under nitrogen atmosphere, palladium (II) acetate (1.721 mg, 7.67 μmole was added and the reaction mixture was heated at 100° C. for 2 hours in a heavy walled sealed tube under microwave irradiation. The reaction mixture was concentrated and the product was purified by preparative HPLC twice. The corresponding fractions were collected and lyophilized to provide the title compound (12.6 mg) as a white solid. LCMS m/z=353.4 [M+H]+.

Workup

concentrationThe reaction mixture was concentrated
customthe product was purified by preparative HPLC twice
customThe corresponding fractions were collected

Sources & evidence

ORD record: ord-d146c9dc3a034adf9526a904bc43b17e
Source dataset: uspto-grants-2014_07
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08778950B2

Reaction notes

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