Lithium Hydroxide → 1-(3-(1-Naphthyloxy)propyl)-3-((e)-2-phenylvinyl)-1h-indole-2-carboxylic acid

HRID 533248Notes

Reaction equation

HRID 533248 reaction equation
Br[C:2]1[C:10]2[C:5](=[CH:6][CH:7]=[CH:8][CH:9]=2)[N:4]([CH2:11][CH2:12][CH2:13][O:14][C:15]2[C:24]3[C:19](=[CH:20][CH:21]=[CH:22][CH:23]=3)[CH:18]=[CH:17][CH:16]=2)[C:3]=1[C:25]([O:27]CC)=[O:26].[CH:30](/B(O)O)=[CH:31]\[C:32]1[CH:37]=[CH:36][CH:35]=[CH:34][CH:33]=1.C(COC)OC.[Li+].[OH-]>Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1.C(O)C>[C:15]1([O:14][CH2:13][CH2:12][CH2:11][N:4]2[C:5]3[C:10](=[CH:9][CH:8]=[CH:7][CH:6]=3)[C:2](/[CH:30]=[CH:31]/[C:32]3[CH:37]=[CH:36][CH:35]=[CH:34][CH:33]=3)=[C:3]2[C:25]([OH:27])=[O:26])[C:24]2[C:19](=[CH:20][CH:21]=[CH:22][CH:23]=2)[CH:18]=[CH:17][CH:16]=1

Participants

7

Reactant 4

HCID 3939Lithium HydroxideHCID 80711,2-DimethoxyethaneHCID 5702628Styrylboronic acidHCID 67316935Ethyl 3-bromo-1-(3-(naphthalen-1-yloxy)propyl)-1h-indole-2-carboxylate

Product 1

HCID 251016641-(3-(1-Naphthyloxy)propyl)-3-((e)-2-phenylvinyl)-1h-indole-2-carboxylic acid

Reagents, catalysts & solvents 2

HCID 178418476HCID 178418476, compoundCatalystHCID 702EthanolSolvent

Procedure

A mixture of EXAMPLE 31C (100 mg), (E)-styrylboronic acid (39 mg), and bis(triphenylphosphine)palladium(II) dichloride (8 mg) in 7:3:3 dimethoxyethane:ethanol:1N aqueous LiOH (2 mL) was heated under microwave conditions (CEM Discover) at 130° C. for 30 minutes The mixture was quenched with 1NHCl and extracted with ethyl acetate. The extract was dried (Na2SO4), filtered, and concentrated. The concentrate was purified by reverse phaseHPLC (Zorbax SB-C18, 20-100% acetonitrile/water/0.1% trifluoroacetic acid) to afford the title compound. 1H NMR (400 MHz, DMSO-d6) δ 13.59 (br, 1H), 8.24 (m, 1H), 8.15 (d, 1H), 7.94 (m, 1H), 7.87 (m, 1H), 7.69 (d, 1H), 7.59 (m, 2H), 7.53 (m, 2H), 7.46 (m, 1H), 7.40 (m, 3H), 7.28 (m, 3H), 7.21 (m 1H), 6.87 (d, 1H), 4.87 (t, 2H), 4.17 (t, 2H), 2.34 (m, 2H).

Workup

  1. customwas quenched with 1NHCl and
  2. extractionextracted with ethyl acetate
  3. dry with materialThe extract was dried (Na2SO4)
  4. filtrationfiltered
  5. concentrationconcentrated
  6. customThe concentrate was purified by reverse phaseHPLC (Zorbax SB-C18, 20-100% acetonitrile/water/0.1% trifluoroacetic acid)

Sources & evidence

ORD record
ord-aeac9c21f3b249d5b4c5802c193c153b
Source dataset
uspto-grants-2014_10
Patent number
US08853209B2

Reaction notes

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