Reaction equation
[C:1]([C:5]1[CH:15]=[CH:14][C:8]([O:9][CH2:10][C:11]([OH:13])=O)=[CH:7][CH:6]=1)([CH3:4])([CH3:3])[CH3:2].NC1C=[C:19](C=CN=1)[C:20](N)=[O:21].CC[N:28]([CH:32]([CH3:34])C)[CH:29]([CH3:31])C.C1C[N:38]([P+](ON2N=NC3C=CC=CC2=3)(N2CCCC2)N2CCCC2)CC1.F[P-](F)(F)(F)(F)F.CN([CH:71]=[O:72])C>>[CH3:71][O:72][C:20](=[O:21])[C:19]1[CH:31]=[CH:29][N:28]=[C:32]([NH:38][C:11](=[O:13])[CH2:10][O:9][C:8]2[CH:7]=[CH:6][C:5]([C:1]([CH3:2])([CH3:3])[CH3:4])=[CH:15][CH:14]=2)[CH:34]=1Participants
6
Procedure
A solution of (4-tert-butyl-phenoxy)acetic acid (200.1 mg, 0.96 mmol), 2-amino-isonicotinamide (109.5 mg, 0.72 mmol), DIPEA (0.17 ml, 0.96 mmol) and PyBOP (499.5 mg, 0.96 mmol) in DMF 6.0 mL was stirred, then partitioned between ethyl acetate and water. The organic phase was purified by preparative TLC(Hexane:EtoAC:MeOH=15:3:1) to give 2-[2-(4-tert-butyl-phenoxy)-acetylamino]-isonicotinic acid methyl ester as a white solid (124.0 mg, 50.3% yield).
Workup
- custompartitioned between ethyl acetate and water
- customThe organic phase was purified by preparative TLC(Hexane:EtoAC:MeOH=15:3:1)
Sources & evidence
- ORD record
- ord-36b99e1d20c54840a42e6cbee3b2a6b5
- Source dataset
- uspto-grants-2013_03
- Patent number
- US08394799B2
Linked notes
Loading…