Cyclopropanemethanamine → N-Cyclopropylmethyl-6-[3-(3,4-difluoro-phenyl)-5-hydroxymethyl-isoxazol-4-ylmethoxy]-nicotinamide

HRID 1514711Notes

Reaction equation

C[Al](C)C.[NH2:5][CH2:6][CH:7]1[CH2:9][CH2:8]1.C[O:11][C:12](=O)[C:13]1[CH:18]=[CH:17][C:16]([O:19][CH2:20][C:21]2[C:22]([C:28]3[CH:33]=[CH:32][C:31]([F:34])=[C:30]([F:35])[CH:29]=3)=[N:23][O:24][C:25]=2[CH2:26][OH:27])=[N:15][CH:14]=1>O1CCOCC1>[CH:7]1([CH2:6][NH:5][C:12](=[O:11])[C:13]2[CH:18]=[CH:17][C:16]([O:19][CH2:20][C:21]3[C:22]([C:28]4[CH:33]=[CH:32][C:31]([F:34])=[C:30]([F:35])[CH:29]=4)=[N:23][O:24][C:25]=3[CH2:26][OH:27])=[N:15][CH:14]=2)[CH2:9][CH2:8]1

Participants

Conditions

Temperature: 50 °C

Procedure

Trimethylaluminium solution (2 M in toluene, 0.8 mL, 1.60 mmol) was added to a solution of aminomethylcyclopropane (78 mg, 1.06 mmol) in dioxane (5 mL). The mixture was stirred for 1 h at 50° C. Then a solution of 6-[3-(3,4-difluoro-phenyl)-5-hydroxymethyl-isoxazol-4-ylmethoxy]-nicotinic acid methyl ester (100 mg, 0.27 mmol) in dioxane (5 mL) was added. The reaction mixture was stirred overnight at 85° C. The dioxane was removed by distillation. The remaining material was purified by chromatography (silica, ethyl acetate:heptane=2:3 to 3:2) to afford the title compound (30 mg, 27%) as a colourless oil. MS: m/e=416.2 [M+H]+.

Workup

stirringThe reaction mixture was stirred overnight at 85° C
customThe dioxane was removed by distillation
customThe remaining material was purified by chromatography (silica, ethyl acetate:heptane=2:3 to 3:2)

Sources & evidence

ORD record: ord-21c30c5e9bd34694b0cfab695ddd0a7a
Source dataset: uspto-grants-2012_07
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08222246B2

Reaction notes

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