2-tert-Butyl-1,1,3,3-tetramethylguanidine → HCID 72194696, compound
Reaction equation
[CH3:1][CH:2]([CH3:15])[CH2:3][NH:4][C:5]1[CH:10]=[CH:9][N:8]=[C:7]([C:11]([F:14])([F:13])[F:12])[N:6]=1.[CH3:16][C:17]1[C:21]([CH2:22][O:23][C:24]2[CH:29]=[CH:28][C:27]([S:30](Cl)(=[O:32])=[O:31])=[CH:26][CH:25]=2)=[C:20]([CH3:34])[O:19][N:18]=1.C(N=C(N(C)C)N(C)C)(C)(C)C>N1C=CC=CC=1>[CH3:16][C:17]1[C:21]([CH2:22][O:23][C:24]2[CH:25]=[CH:26][C:27]([S:30]([N:4]([CH2:3][CH:2]([CH3:15])[CH3:1])[C:5]3[CH:10]=[CH:9][N:8]=[C:7]([C:11]([F:12])([F:14])[F:13])[N:6]=3)(=[O:32])=[O:31])=[CH:28][CH:29]=2)=[C:20]([CH3:34])[O:19][N:18]=1Participants
Conditions
- Temperature
- 100 °C
Procedure
To a solution of N-(2-methylpropyl)-2-(trifluoromethyl)-4-pyrimidinamine (100 mg, 0.456 mmol) and 4-{[(3,5-dimethyl-4-isoxazolyl)methyl]oxy}benzenesulfonyl chloride (151 mg, 0.502 mmol) in pyridine (1 mL) was added 2-(tert-butyl)-1,1,3,3-tetramethylguanidine (0.092 mL, 0.456 mmol). The reaction vessel was sealed and heated by microwaves to 100° C. for 30 minutes. The solvent was evaporated in vacuo to give the crude product, which was purified by solid phase extraction (SPE) using an aminopropyl (NH2) cartridge then a sulphonic acid (SCX) cartridge (both eluted with methanol). The appropriate fractions were combined and dried under a stream of nitrogen to give the crude product which was further purified by mass directed autoprep (formic acid modifier) to give the title product, 19.8 mg. LCMS (2 min, formic) Rt 1.32 min, m/z (ES+) 485 (M+H).
Workup
- customThe reaction vessel was sealed
- customThe solvent was evaporated in vacuo
- customto give the crude product, which
- customwas purified by solid phase extraction (SPE)
- washa sulphonic acid (SCX) cartridge (both eluted with methanol)
- customdried under a stream of nitrogen
- customto give the crude product which
- customwas further purified by mass
Sources & evidence
- ORD record
- ord-ca8285e440b049e0b804d18670c43b55
- Source dataset
- uspto-grants-2016_01
- Patent number
- US09242972B2
Reaction notes
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