Sodium Carbonate → HCID 118314210, compound

HRID 718345Notes

Reaction equation

HRID 718345 reaction equation
Br[C:2]1[C:3]([N:21]2[CH2:26][CH2:25][C:24]([CH3:28])([CH3:27])[CH2:23][CH2:22]2)=[C:4]([C@H:10]([O:16][C:17]([CH3:20])([CH3:19])[CH3:18])[C:11]([O:13][CH2:14][CH3:15])=[O:12])[C:5]([CH3:9])=[N:6][C:7]=1[CH3:8].[Cl:29][C:30]1[CH:46]=[CH:45][C:33]([CH2:34][O:35][C:36]2[CH:41]=[CH:40][C:39](B(O)O)=[CH:38][CH:37]=2)=[CH:32][CH:31]=1.C([O-])([O-])=O.[Na+].[Na+]>CN(C=O)C.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[C:17]([O:16][C@@H:10]([C:4]1[C:5]([CH3:9])=[N:6][C:7]([CH3:8])=[C:2]([C:39]2[CH:38]=[CH:37][C:36]([O:35][CH2:34][C:33]3[CH:32]=[CH:31][C:30]([Cl:29])=[CH:46][CH:45]=3)=[CH:41][CH:40]=2)[C:3]=1[N:21]1[CH2:26][CH2:25][C:24]([CH3:28])([CH3:27])[CH2:23][CH2:22]1)[C:11]([O:13][CH2:14][CH3:15])=[O:12])([CH3:20])([CH3:19])[CH3:18]

Participants

6

Reactant 3

HCID 10340Sodium CarbonateHCID 16217897{4-[(4-Chlorophenyl)methoxy]phenyl}boronic acidHCID 118314215Ethyl (S)-2-(5-bromo-4-(4,4-dimethylpiperidin-1-yl)-2,6-dimethylpyridin-3-yl)-2-(tert-butoxy)acetate

Product 1

HCID 118314210HCID 118314210, compoundYield 59.7%

Reagents, catalysts & solvents 2

HCID 178418397HCID 178418397, compoundCatalystHCID 6228DimethylformamideSolvent

Procedure

A mixture of (S)-ethyl 2-(5-bromo-4-(4,4-dimethylpiperidin-1-yl)-2,6-dimethylpyridin-3-yl)-2-(tert-butoxy)acetate (0.0473 g, 0.104 mmol), (4-((4-chlorobenzyl)oxy)phenyl)boronic acid (0.041 g, 0.156 mmol) and 2M Na2CO3 (0.130 ml, 0.260 mmol) in DMF 92 mL) was degassed for 10 min. Then, Pd(Ph3P)4 (0.012 g, 10.39 μmol) was added, degassed for 5 min and placed in a oil bath pre-heated to 110 C. After 2 h, cooled and purified by pre-HPLC to afford (S)-ethyl 2-(tert-butoxy)-2-(5-(4-((4-chlorobenzyl)oxy)phenyl)-4-(4,4-dimethylpiperidin-1-yl)-2,6-dimethylpyridin-3-yl)acetate (0.0368 g, 0.062 mmol, 59.7% yield) as white solid. 1H NMR (500 MHz, CDCl3) δ 7.38-7.44 (m, 4H), 7.16-7.19 (m, 1H), 7.02-7.09 (m, 3H), 6.01 (br. s., 1H), 5.09-5.16 (m, 2H), 4.24-4.31 (m, 1H), 4.19 (qd, J=7.1, 10.8 Hz, 1H), 3.04-3.27 (m, 1H), 2.83 (br. s., 1H), 2.67 (br. s., 3H), 2.28 (br. s., 4H), 1.94-2.13 (m, 1H), 1.27 (t, J=7.1 Hz, 3H), 1.20 (s, 9H), 0.88 (m, 3H), 0.68 (br. s., 3H). 4H of piperidine were not resolved. LCMS (M+H)=593.3.

Workup

  1. customwas degassed for 10 min
  2. customdegassed for 5 min
  3. customplaced in a oil bath
  4. temperaturepre-heated to 110 C
  5. temperaturecooled
  6. custompurified by pre-HPLC

Sources & evidence

ORD record
ord-4d0be286925d46f686d94230bebe6b4e
Source dataset
uspto-grants-2015_11
Patent number
US09193720B2

Reaction notes

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