Potassium Phosphate, Tribasic → [6-(4-{1-Ethyl-1-[4-((E)-3-ethyl-3-hydroxy-1-pentenyl)-3-methyl-phenyl]-propyl}-2-methyl-phenyl)-pyridin-3-yl]-acetic acid ethyl ester

HRID 546957Notes

Reaction equation

HRID 546957 reaction equation
[CH2:1]([C:3]([OH:36])([CH2:34][CH3:35])[CH2:4][CH2:5][C:6]1[CH:11]=[CH:10][C:9]([C:12]([CH2:31][CH3:32])([C:15]2[CH:20]=[CH:19][C:18](B3OC(C)(C)C(C)(C)O3)=[C:17]([CH3:30])[CH:16]=2)[CH2:13][CH3:14])=[CH:8][C:7]=1[CH3:33])[CH3:2].[CH2:37]([O:39][C:40](=[O:49])[CH2:41][C:42]1[CH:43]=[N:44][C:45](Br)=[CH:46][CH:47]=1)[CH3:38].P([O-])([O-])([O-])=O.[K+].[K+].[K+]>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.CN(C)C=O>[CH2:37]([O:39][C:40](=[O:49])[CH2:41][C:42]1[CH:43]=[N:44][C:45]([C:18]2[CH:19]=[CH:20][C:15]([C:12]([CH2:13][CH3:14])([C:9]3[CH:10]=[CH:11][C:6](/[CH:5]=[CH:4]/[C:3]([CH2:34][CH3:35])([OH:36])[CH2:1][CH3:2])=[C:7]([CH3:33])[CH:8]=3)[CH2:31][CH3:32])=[CH:16][C:17]=2[CH3:30])=[CH:46][CH:47]=1)[CH3:38]

Participants

6

Reactant 3

HCID 62657Potassium Phosphate, TribasicHCID 57443504HCID 57443504, compoundHCID 577091063-Ethyl-1-(4-{1-ethyl-1-[3-methyl-4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-phenyl]-propyl}-2-methyl-phenyl)-pentan-3-ol

Product 1

HCID 57709093[6-(4-{1-Ethyl-1-[4-((E)-3-ethyl-3-hydroxy-1-pentenyl)-3-methyl-phenyl]-propyl}-2-methyl-phenyl)-pyridin-3-yl]-acetic acid ethyl esterYield 58%

Reagents, catalysts & solvents 2

HCID 178418397HCID 178418397, compoundCatalystHCID 6228DimethylformamideSolvent

Conditions

Temperature
140 °C

Procedure

N,N-Dimethylformamide (0.7 mL) was added to 3-ethyl-1-(4-{1-ethyl-1-[3-methyl-4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-phenyl]-propyl}-2-methyl-phenyl)-pentan-3-ol (Example 29; 50 mg, 0.102 mmol), (6-bromo-pyridin-3-yl)acetic acid ethyl ester (Example 74-(1); 40 mg, 0.165 mmol), tetrakis(triphenylphosphine)palladium (0) (23 mg, 0.02 mmol) and potassium phosphate (63.9 mg, 0.30 mmol). The mixture was stirred with microwave heating at 140° C. for seven minutes in a nitrogen atmosphere. The reaction mixture was concentrated under reduced pressure. The residue was purified by preparative TLC (hexane/ethyl acetate=10/1, then dichloromethane/methanol=20/1) to give the title compound (24.6 mg, 58%).

Workup

  1. concentrationThe reaction mixture was concentrated under reduced pressure
  2. customThe residue was purified by preparative TLC (hexane/ethyl acetate=10/1

Sources & evidence

ORD record
ord-fed0de2ccb9a46c39481757e361f91e1
Source dataset
uspto-grants-2011_05
Patent number
US07935688B2

Reaction notes

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