Potassium Carbonate → 5-(3-cyano-5-formylphenyl)-3-[1-(ethylsulfonyl)-4-piperidinyl]-1H-indole-7-carboxamide

HRID 1806258Notes

Reaction equation

[CH2:1]([S:3]([N:6]1[CH2:11][CH2:10][CH:9]([C:12]2[C:20]3[C:15](=[C:16]([C:30]([NH2:32])=[O:31])[CH:17]=[C:18](B4OC(C)(C)C(C)(C)O4)[CH:19]=3)[NH:14][CH:13]=2)[CH2:8][CH2:7]1)(=[O:5])=[O:4])[CH3:2].Br[C:34]1[CH:35]=[C:36]([CH:39]=[C:40]([CH:42]=[O:43])[CH:41]=1)[C:37]#[N:38].C([O-])([O-])=O.[K+].[K+]>O1CCOCC1.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.[Pd]>[C:37]([C:36]1[CH:35]=[C:34]([C:18]2[CH:19]=[C:20]3[C:15](=[C:16]([C:30]([NH2:32])=[O:31])[CH:17]=2)[NH:14][CH:13]=[C:12]3[CH:9]2[CH2:10][CH2:11][N:6]([S:3]([CH2:1][CH3:2])(=[O:4])=[O:5])[CH2:7][CH2:8]2)[CH:41]=[C:40]([CH:42]=[O:43])[CH:39]=1)#[N:38]

Participants

Conditions

Temperature: 160 °C

Procedure

To a solution of 3-[1-(ethylsulfonyl)-4-piperidinyl]-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-indole-7-carboxamide (46 mg, 0.1 mmol) in dioxane (2.0 mL, 0.7 mL) was added 3-bromo-5-formylbenzonitrile (68 mg, 0.3 mmol) and K2CO3 (83 mg, 0.6 mmol) in a microwave tube. The reaction mixture was degassed for 5 min before addition of tetrakis (triphenylphosphosphine) palladium (0) (11 mg, 0.01 mmol). The reaction was heated in a microwave for 20 min at 160° C. It was then purified by Gilson Preparatory HPLC to give 5-(3-cyano-5-formylphenyl)-3-[1-(ethylsulfonyl)-4-piperidinyl]-1H-indole-7-carboxamide.

Workup

customIt was then purified by Gilson Preparatory HPLC

Sources & evidence

ORD record: ord-a94b003ebe9744768d29d3f3654063b8
Source dataset: uspto-grants-2013_01
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08354406B2

Reaction notes

Loading…