Sodium Carbonate → (R)-3',5'-dichloro-4'-[2-oxo-1-(4-triisopropylsilanyloxy-piperidin-1-yl)-pyrrolidin-3-ylmethyl]-biphenyl-4-carboxylic acid methyl ester

HRID 1692083Notes

Reaction equation

HRID 1692083 reaction equation
[Cl:1][C:2]1[CH:3]=[C:4](OS(C(F)(F)F)(=O)=O)[CH:5]=[C:6]([Cl:32])[C:7]=1[CH2:8][C@@H:9]1[CH2:13][CH2:12][N:11]([N:14]2[CH2:19][CH2:18][CH:17]([O:20][Si:21]([CH:28]([CH3:30])[CH3:29])([CH:25]([CH3:27])[CH3:26])[CH:22]([CH3:24])[CH3:23])[CH2:16][CH2:15]2)[C:10]1=[O:31].[CH3:41][O:42][C:43]([C:45]1[CH:50]=[CH:49][C:48](B(O)O)=[CH:47][CH:46]=1)=[O:44].C(=O)([O-])[O-].[Na+].[Na+]>C1COCC1.O.C(OCC)(=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>[CH3:41][O:42][C:43]([C:45]1[CH:50]=[CH:49][C:48]([C:4]2[CH:5]=[C:6]([Cl:32])[C:7]([CH2:8][C@@H:9]3[CH2:13][CH2:12][N:11]([N:14]4[CH2:19][CH2:18][CH:17]([O:20][Si:21]([CH:22]([CH3:24])[CH3:23])([CH:28]([CH3:29])[CH3:30])[CH:25]([CH3:27])[CH3:26])[CH2:16][CH2:15]4)[C:10]3=[O:31])=[C:2]([Cl:1])[CH:3]=2)=[CH:47][CH:46]=1)=[O:44]

Participants

8

Reactant 3

HCID 10340Sodium CarbonateHCID 27343694-Methoxycarbonylphenylboronic acidHCID 86630019trifluoro-methanesulfonic acid 3,5-dichloro-4-[(R)-2-oxo-1-(4-triisopropylsilanyloxy-piperidin-1-yl)-pyrrolidin-3-ylmethyl]-phenyl ester

Product 1

HCID 66904939(R)-3',5'-dichloro-4'-[2-oxo-1-(4-triisopropylsilanyloxy-piperidin-1-yl)-pyrrolidin-3-ylmethyl]-biphenyl-4-carboxylic acid methyl esterYield 96.7%

Reagents, catalysts & solvents 4

HCID 178418397HCID 178418397, compoundCatalystHCID 962WaterSolventHCID 8028TetrahydrofuranSolventHCID 8857Ethyl AcetateSolvent

Conditions

Temperature
80 °C

Procedure

Bring a mixture of (R)-trifluoro-methanesulfonic acid 3,5-dichloro-4-[2-oxo-1-(4-triisopropylsilanyloxy-piperidin-1-yl)-pyrrolidin-3-ylmethyl]-phenyl ester (0.52 g, 0.8 mmol), 4-methoxycarbonylphenylboronic acid (0.174 g, 0.966 mmol), sodium carbonate (0.256 g, 2.41 mmol) in THF (20 mL) and water (6 mL) to 60° C. To the mixture at 60° C., add Pd(PPh3)4 (0.046 g, 0.04 mmol) and raise the reaction temperature to 80° C. and stir for 1 hour. Cool the reaction, dilute with ethyl acetate, and wash with water and brine. Dry the organic layer (Na2SO4), remove the solvent in vacuo to afford crude product, and purify on silica gel column with 25% to 50% ethyl acetate in hexanes gradient to afford 0.49 g (96%) of the titled product. MS (m/z): 633 (M+).

Workup

  1. temperatureCool
  2. customthe reaction
  3. washwash with water and brine
  4. dry with materialDry the organic layer (Na2SO4)
  5. customremove the solvent in vacuo
  6. customto afford crude product
  7. custompurify on silica gel column with 25% to 50% ethyl acetate in hexanes gradient

Sources & evidence

ORD record
ord-c3b93753fc724234ae22599b515f5de5
Source dataset
uspto-grants-2012_04
Patent number
US08153807B2

Reaction notes

Loading…