Methane → tert-butyl (3R,4S,5S)-1-(3-(6-(2,6-difluorophenyl)-5-fluoropicolinamido)pyridin-4-yl)-5-methyl-4-(4-methyl-1H-1,2,3-triazol-1-yl)piperidin-3-ylcarbamate

HRID 879222

Reaction equation

[N:1]([C@H:4]1[C@@H:9]([CH3:10])[CH2:8][N:7]([C:11]2[CH:16]=[CH:15][N:14]=[CH:13][C:12]=2[NH:17][C:18](=[O:34])[C:19]2[CH:24]=[CH:23][C:22]([F:25])=[C:21]([C:26]3[C:31]([F:32])=[CH:30][CH:29]=[CH:28][C:27]=3[F:33])[N:20]=2)[CH2:6][C@H:5]1[NH:35][C:36](=[O:42])[O:37][C:38]([CH3:41])([CH3:40])[CH3:39])=[N+:2]=[N-:3].C.[CH:44]#[C:45][CH3:46].C(N(CC)CC)C>O1CCOCC1.[Cu]>[F:32][C:31]1[CH:30]=[CH:29][CH:28]=[C:27]([F:33])[C:26]=1[C:21]1[N:20]=[C:19]([C:18]([NH:17][C:12]2[CH:13]=[N:14][CH:15]=[CH:16][C:11]=2[N:7]2[CH2:8][C@H:9]([CH3:10])[C@H:4]([N:1]3[CH:44]=[C:45]([CH3:46])[N:3]=[N:2]3)[C@H:5]([NH:35][C:36](=[O:42])[O:37][C:38]([CH3:41])([CH3:40])[CH3:39])[CH2:6]2)=[O:34])[CH:24]=[CH:23][C:22]=1[F:25]

Participants

Conditions

Temperature: 60 °C

Procedure

In a high pressure vial was added tert-butyl (3R,4S,5S)-4-azido-1-(3-(6-(2,6-difluorophenyl)-5-fluoropicolinamido)pyridin-4-yl)-5-methylpiperidin-3-ylcarbamate (1.0 equiv.), copper in charcoal (0.2 equiv.), prop-1-yne (10.0 equiv.) and triethylamine (1.5 equiv.), in dioxane (0.15 M) to give a black suspension. The pressure tube was sealed and the mixture was stirred with heating to 60° C. for 48 hrs. The reaction was cooled to RT, filtered through celite, concentrated to yield tert-butyl (3R,4S,5S)-1-(3-(6-(2,6-difluorophenyl)-5-fluoropicolinamido)pyridin-4-yl)-5-methyl-4-(4-methyl-1H-1,2,3-triazol-1-yl)piperidin-3-ylcarbamate in 95% yield. LC/MS (m/z)=623.2 (MH+), Rt=0.87 min.

Workup

customThe pressure tube was sealed
temperatureThe reaction was cooled to RT
filtrationfiltered through celite
concentrationconcentrated

Sources & evidence

ORD record: ord-eeefc0c704a947bbac35ab33861ca366
Source dataset: uspto-grants-2015_03
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08987457B2

Linked notes

Loading…