Diethylamine → 5-(4-chloro-phenyl)-N-((1R,2R)-2-hydroxy-cyclohexyl)-6-(3-methoxy-prop-1-ynyl)-nicotinamide

HRID 1159288Notes

Reaction equation

Cl[C:2]1[C:17]([C:18]2[CH:23]=[CH:22][C:21]([Cl:24])=[CH:20][CH:19]=2)=[CH:16][C:5]([C:6]([NH:8][C@@H:9]2[CH2:14][CH2:13][CH2:12][CH2:11][C@H:10]2[OH:15])=[O:7])=[CH:4][N:3]=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.[CH2:44]([O:47][CH3:48])[C:45]#[CH:46].C(NCC)C>CN(C=O)C.[Cu](I)I>[Cl:24][C:21]1[CH:22]=[CH:23][C:18]([C:17]2[C:2]([C:46]#[C:45][CH2:44][O:47][CH3:48])=[N:3][CH:4]=[C:5]([CH:16]=2)[C:6]([NH:8][C@@H:9]2[CH2:14][CH2:13][CH2:12][CH2:11][C@H:10]2[OH:15])=[O:7])=[CH:19][CH:20]=1

Participants

Conditions

Temperature: 120 °C

Procedure

To a mixture of 6-chloro-5-(4-chloro-phenyl)-N-((1R,2R)-2-hydroxy-cyclohexyl)-nicotinamide (450 mg), 52 mg bistriphenylphosphinpalladium dichloride, 14 mg copperiodide, 146 mg triphenylphosphine and methyl propargyl ether (0.12 mL) in 10 mL DMF is added diethylamine (1.9 μL). The mixture is heated in the microwave oven for 40 min at 120° C. The reaction mixture was cooled to room temperature and partitioned between 1 N hydrochloric acid and ethyl acetate. The organic phase was purified by gradient chromatography on silica gel with heptane:ethyl acetate to yield 0.13 g of the title compound as a light yellow solid, MS (ISP) 399.1 (M+H)+.

Workup

temperatureThe reaction mixture was cooled to room temperature
custompartitioned between 1 N hydrochloric acid and ethyl acetate
customThe organic phase was purified by gradient chromatography on silica gel with heptane

Sources & evidence

ORD record: ord-a3031797ca104f92b25682db0e2dca73
Source dataset: uspto-grants-2010_10
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07812028B2

Reaction notes

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