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

HRID 1929892Notes

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 L). 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-fd26ea3ad52540c489ab3ea4e0415b09
Source dataset: uspto-grants-2012_05
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08188093B2

Reaction notes

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