Potassium Hydroxide → 6-(1-methyl-piperidin-4-yloxy)-N-[2-(4-phenoxy-phenyl)-ethyl]-nicotinamide

HRID 1677108Notes

Reaction equation

N1([C:7]2[CH:30]=[CH:29][C:10]([C:11]([NH:13][CH2:14][CH2:15][C:16]3[CH:21]=[CH:20][C:19]([O:22][C:23]4[CH:28]=[CH:27][CH:26]=[CH:25][CH:24]=4)=[CH:18][CH:17]=3)=[O:12])=[CH:9][N:8]=2)CCOCC1.[OH:31][CH:32]1[CH2:37][CH2:36][N:35]([CH3:38])[CH2:34][CH2:33]1.[OH-].[K+]>CS(C)=O.C(Cl)Cl.O>[CH3:38][N:35]1[CH2:36][CH2:37][CH:32]([O:31][C:7]2[CH:30]=[CH:29][C:10]([C:11]([NH:13][CH2:14][CH2:15][C:16]3[CH:21]=[CH:20][C:19]([O:22][C:23]4[CH:28]=[CH:27][CH:26]=[CH:25][CH:24]=4)=[CH:18][CH:17]=3)=[O:12])=[CH:9][N:8]=2)[CH2:33][CH2:34]1

Participants

Conditions

Temperature: 100 °C

Procedure

A solution of 6-chloro-N-[2-(4-phenoxy-phenyl)-ethyl]-nicotinamide (130 mg, intermediate from example 23) in DMSO (1.4 ml) was treated with 4-hydroxy-N-methylpiperidine (68 mg) and KOH (93 mg). The reaction mixture was heated for 20 min at 100° C. in the microwave oven. Then it was cooled to r.t. and diluted with CH2Cl2 and water. The aqueous layer was washed with CH2Cl2. The combined organic layers were dried over MgSO4, filtered and concentrated. The crude product was purified by column chromatography (silica gel; gradient: CH2Cl2→CH2Cl2/MeOH 98:2) to give 6-(1-methyl-piperidin-4-yloxy)-N-[2-(4-phenoxy-phenyl)-ethyl]-nicotinamide (29 mg) as off-white solid. MS (ISP): 432.2 ([M+H]+)

Workup

temperatureThen it was cooled to r.t.
washThe aqueous layer was washed with CH2Cl2
dry with materialThe combined organic layers were dried over MgSO4
filtrationfiltered
concentrationconcentrated
customThe crude product was purified by column chromatography (silica gel; gradient: CH2Cl2→CH2Cl2/MeOH 98:2)

Sources & evidence

ORD record: ord-933d96172b544c4fa54e4ce18e58dd17
Source dataset: uspto-grants-2011_08
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08008305B2

Reaction notes

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