Potassium Phosphate, Tribasic → HCID 86669683, compound

HRID 1623942Notes

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(C)C=CC=CC=1.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>[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 (1aS,5aS)-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 (0.020 g, 0.051 mmol), cyclopropylboronic acid (6.59 mg, 0.077 mmol) and potassium phosphate (0.033 g, 0.153 mmol) in toluene/H2O (1.5 mL/0.050 mL) under nitrogen atmosphere, tetrakis(triphenylphosphine)palladium (5.91 mg, 5.11 μmol) was added. The reaction was heated at 100° C. for 30 min in a heavy walled sealed tube under microwave irradiation. Additional cyclopropylboronic acid (6.59 mg, 0.077 mmol) was added and the reaction was heated at 100° C. for 2 more hours. The mixture was purified by HPLC to give the titled compound (5.1 mg) as a white solid. LCMS m/z=353.5 [M+H]+.

Workup

temperaturethe reaction was heated at 100° C. for 2 more hours
customThe mixture was purified by HPLC

Sources & evidence

ORD record: ord-9fde995f0e154de096ecc0f00d8655c3
Source dataset: uspto-grants-2014_07
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08778950B2

Reaction notes

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