Potassium Carbonate → HCID 67243390, compound

HRID 335811Notes

Reaction equation

FC(F)(F)S(O[C:7]1[CH:20]=[C:19]2[C:10]([O:11][C:12]3[C:13]([F:32])=[CH:14][C:15]([C:26]4[CH2:27][CH2:28][O:29][CH2:30][CH:31]=4)=[CH:16][C:17]=3[C:18]32[CH2:24][O:23][C:22]([NH2:25])=[N:21]3)=[CH:9][CH:8]=1)(=O)=O.[N:35]1[CH:40]=[CH:39][CH:38]=[C:37](B(O)O)[CH:36]=1.C(=O)([O-])[O-].[K+].[K+]>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.CN(C=O)C>[O:29]1[CH2:30][CH:31]=[C:26]([C:15]2[CH:14]=[C:13]([F:32])[C:12]3[O:11][C:10]4[C:19](=[CH:20][C:7]([C:37]5[CH:36]=[N:35][CH:40]=[CH:39][CH:38]=5)=[CH:8][CH:9]=4)[C@:18]4([CH2:24][O:23][C:22]([NH2:25])=[N:21]4)[C:17]=3[CH:16]=2)[CH2:27][CH2:28]1

Participants

Conditions

Temperature: 75 °C

Procedure

A vial was charged with 2-amino-2′-(3,6-dihydro-2H-pyran-4-yl)-4′-fluoro-5H-spiro[oxazole-4,9′-xanthene]-7′-yl trifluoromethanesulfonate (150 mg, 0.300 mmol), pyridin-3-ylboronic acid (111 mg, 0.899 mmol), and Pd(PPh3)4 (34.6 mg, 0.030 mmol). The vial was purged with Ar (g), then DMF (2 mL) and potassium carbonate (0.749 mL, 1.499 mmol) (as a 2.0 M aq. solution) were added in sequence. The vial was capped and heated in a Biotage Initiator microwave reactor for 1.5 h at 75° C. The product was purified via Gilson HPLC (gradient elution 20-90% MeCN/H2O, 0.1% TFA) to afford (R)-2′-(3,6-dihydro-2H-pyran-4-yl)-4′-fluoro-7′-(pyridin-3-yl)-5H-spiro[oxazole-4,9′-xanthen]-2-amine as an off white solid. Found MS: MH+=430.

Workup

customThe vial was purged with Ar (g)
customThe vial was capped
customThe product was purified via Gilson HPLC (gradient elution 20-90% MeCN/H2O, 0.1% TFA)

Sources & evidence

ORD record: ord-8dda4a3c347446e6a3bb0ab5d397805e
Source dataset: uspto-grants-2014_11
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08883782B2

Reaction notes

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