Diisopropylethylamine → Tert-butyl 3-(3-{[(4,6-dimethyl-2-oxo-1,2-dihydropyridin-3-yl)methyl]carbamoyl}-4-methyl-5-[methyl(oxan-4-yl)amino]phenyl)azetidine-1-carboxylate

HRID 2208816Notes

Reaction equation

HRID 2208816 reaction equation
[C:1]([O:5][C:6]([N:8]1[CH2:11][CH:10]([C:12]2[CH:13]=[C:14]([N:22]([CH3:29])[CH:23]3[CH2:28][CH2:27][O:26][CH2:25][CH2:24]3)[C:15]([CH3:21])=[C:16]([CH:20]=2)[C:17]([OH:19])=O)[CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].CCN(C(C)C)C(C)C.CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.[NH2:63][CH2:64][C:65]1[C:66](=[O:73])[NH:67][C:68]([CH3:72])=[CH:69][C:70]=1[CH3:71]>CN(C=O)C>[CH3:71][C:70]1[CH:69]=[C:68]([CH3:72])[NH:67][C:66](=[O:73])[C:65]=1[CH2:64][NH:63][C:17]([C:16]1[CH:20]=[C:12]([CH:10]2[CH2:9][N:8]([C:6]([O:5][C:1]([CH3:2])([CH3:3])[CH3:4])=[O:7])[CH2:11]2)[CH:13]=[C:14]([N:22]([CH3:29])[CH:23]2[CH2:24][CH2:25][O:26][CH2:27][CH2:28]2)[C:15]=1[CH3:21])=[O:19]

Participants

6

Reactant 4

HCID 81531DiisopropylethylamineHCID 70638443-(Aminomethyl)-4,6-dimethyl-1,2-dihydropyridin-2-oneHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 708738425-{1-[(Tert-butoxy)carbonyl]azetidin-3-yl}-2-methyl-3-[methyl(oxan-4-yl)amino]benzoic acid

Product 1

HCID 70913254Tert-butyl 3-(3-{[(4,6-dimethyl-2-oxo-1,2-dihydropyridin-3-yl)methyl]carbamoyl}-4-methyl-5-[methyl(oxan-4-yl)amino]phenyl)azetidine-1-carboxylateYield 68.1%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

To a stirred solution of 5-{1-[(tert-butoxy)carbonyl]azetidin-3-yl}-2-methyl-3-[methyl(oxan-4-yl)amino]benzoic acid (47 mg, 0.12 mmol) in DMF (2 ml) were added DIPEA (40 μl, 0.23 mmol) and HATU (53 mg, 0.14 mmol) at 0° C. The reaction was stirred at 0° C. for 5 min after which time 3-(aminomethyl)-4,6-dimethyl-1,2-dihydropyridin-2-one (89%, 22 mg, 0.13 mmol) was added and the reaction was warmed room temperature for 16 h. The reaction mixture was then poured onto distilled water (50 ml) and the aqueous phase was extracted with DCM (3×50 ml), washed with brine (50 ml) dried (Na2SO4), filtered and evaporated to give an oil. The product was then purified using a 5 g silica Isolute column eluting with 0% to 5% MeOH in DCM and evaporated to afford the title compound as a colourless oil (44 mg, 67%). LC-MS 96%, m/z=539.4, 1H NMR (500 MHz, Chloroform-d) δ 11.68 (s, 1H), 6.95 (t, J=5.8 Hz, 1H), 6.92 (d, J=4.2 Hz, 2H), 5.88 (s, 1H), 4.47 (d, J=5.8 Hz, 2H), 4.20 (t, J=8.7 Hz, 2H), 3.90 (d, J=11.2 Hz, 2H), 3.86-3.73 (m, 2H), 3.62-3.50 (m, 1H), 3.26 (t, J=10.8 Hz, 2H), 2.89 (ddd, J=14.6, 10.8, 3.7 Hz, 1H), 2.55 (s, 3H), 2.33 (s, 3H), 2.20 (s, 3H), 2.14 (s, 3H), 1.75-1.47 (m, 4H), 1.39 (d, J=5.7 Hz, 9H).

Workup

  1. additionwas added
  2. additionThe reaction mixture was then poured
  3. distillationonto distilled water (50 ml)
  4. extractionthe aqueous phase was extracted with DCM (3×50 ml)
  5. washwashed with brine (50 ml)
  6. dry with materialdried (Na2SO4)
  7. filtrationfiltered
  8. customevaporated
  9. customto give an oil
  10. customThe product was then purified
  11. washeluting with 0% to 5% MeOH in DCM
  12. customevaporated

Sources & evidence

ORD record
ord-0e1ac0070c0545e5a82de07fd13ac6da
Source dataset
uspto-grants-2016_06
Patent number
US09376422B2

Reaction notes

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