Potassium Carbonate → HCID 86696484, compound

HRID 870774Notes

Reaction equation

[C:1]([O:5][C:6](=[O:24])[N:7]([C@H:9]1[CH2:13][CH2:12][N:11]([C:14]2[CH:15]=[CH:16][C:17]3[N:18]([C:20](Br)=[CH:21][N:22]=3)[N:19]=2)[CH2:10]1)[CH3:8])([CH3:4])([CH3:3])[CH3:2].[CH3:25][O:26][C:27]1[C:32](B(O)O)=[CH:31][CH:30]=[CH:29][N:28]=1.C([O-])([O-])=O.[K+].[K+]>CC#N.O.Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1>[C:1]([O:5][C:6](=[O:24])[N:7]([C@H:9]1[CH2:13][CH2:12][N:11]([C:14]2[CH:15]=[CH:16][C:17]3[N:18]([C:20]([C:32]4[C:27]([O:26][CH3:25])=[N:28][CH:29]=[CH:30][CH:31]=4)=[CH:21][N:22]=3)[N:19]=2)[CH2:10]1)[CH3:8])([CH3:4])([CH3:3])[CH3:2]

Participants

Conditions

Temperature: 150 °C

Procedure

A mixture of [(S)-1-(3-bromo-imidazo[1,2-b]pyridazin-6-yl)-pyrrolidin-3-yl]-methyl-carbamic acid tert butyl ester (83 mg, 0.21 mmol), 2-methoxypyridine-3-boronic acid (43 mg, 0.28 mmol), K2CO3 (87 mg, 0.63 mmol) and dichlorobis(triphenylphosphine)palladium(II) (7.4 mg, 0.011 mmol) in MeCN/water (3.2 ml/0.8 ml) was heated in a microwave at 150° C. for 15 min. The water layer was removed and the organic layer was diluted with MeCN and filtered. The filtrate was subjected to preparative HPLC to give the titled compound (69.3 mg). 1H NMR (400 MHz, CHLOROFORM-d) δ ppm 1.50 (s, 9H) 2.11-2.29 (m, 2H) 2.84 (s, 3H) 3.40 (dd, J=10.48, 6.95 Hz, 1H) 3.46-3.53 (m, 1H) 3.67-3.74 (m, 2H) 4.08 (s, 3H) 4.94 (br. s., 1H) 6.61 (d, J=9.60 Hz, 1H) 7.03 (dd, J=7.58, 4.80 Hz, 1H) 7.77 (d, J=9.85 Hz, 1H) 8.12-8.18 (m, 2H) 8.86 (dd, J=7.58, 1.77 Hz, 1H). LRMS (ESI) m/z 425.3 [(M+H)]+, calc'd for C22H28N6O3: 424.51.

Workup

customThe water layer was removed
additionthe organic layer was diluted with MeCN
filtrationfiltered

Sources & evidence

ORD record: ord-e7ab45a2f44745eb8a16368cf1232f4f
Source dataset: uspto-grants-2015_03
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08969565B2

Reaction notes

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