Potassium Carbonate → HCID 59332760, compound

HRID 387372Notes

Reaction equation

Br[C:2]1[CH:3]=[C:4]2[C:8](=[C:9]([C:11]([NH2:13])=[O:12])[CH:10]=1)[NH:7][CH:6]=[C:5]2[CH:14]1[CH2:19][CH2:18][CH2:17][S:16](=[O:21])(=[O:20])[CH2:15]1.[S:22]1[CH:26]=[CH:25][CH:24]=[C:23]1B(O)O.C(=O)([O-])[O-].[K+].[K+]>O1CCOCC1.O.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.Cl[Pd]Cl.[Fe+2]>[O:20]=[S:16]1(=[O:21])[CH2:17][CH2:18][CH2:19][CH:14]([C:5]2[C:4]3[C:8](=[C:9]([C:11]([NH2:13])=[O:12])[CH:10]=[C:2]([C:23]4[S:22][CH:26]=[CH:25][CH:24]=4)[CH:3]=3)[NH:7][CH:6]=2)[CH2:15]1

Participants

Conditions

Temperature: 100 °C

Procedure

5-Bromo-3-(1,1-dioxidotetrahydro-2H-thiopyran-3-yl)-1H-indole-7-carboxamide (0.050 g, 0.134 mmol) and 2-thienylboronic acid (0.022 g, 0.174 mmol) was dissolved in a 6:1 solution of 1,4 dioxane (3 mL)/water (0.5 mL) in a 20 mL microwave reaction vessel. Potassium carbonate (0.093 g, 0.670 mmol) was added and the solution was degassed with Nitrogen. PdCl2(dppf)2 (0.017 g, 0.023 mmol) was added and the reaction was heated in a microwave at 100° C. for 20 min. The solution was passed through a StratoSphere SPE PL-Thiol MP SPE column to remove palladium and purified on Gilson preparative HPLC using Acetonitrile/Water. The desired fractions were concentrated, giving 0.014 g (28%) of the title compound.

Workup

customthe solution was degassed with Nitrogen
customto remove palladium
custompurified on Gilson preparative HPLC
concentrationThe desired fractions were concentrated

Sources & evidence

ORD record: ord-af6d53f330284ba48d82c2e38dd96de6
Source dataset: uspto-grants-2013_02
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08372875B2

Reaction notes

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