Lithium Hydroxide → 3-(3-(1-Naphthyloxy)propyl)-5-((1e)-3-phenylprop-1-enyl)-1h-indole-2-carboxylic acid

HRID 533237Notes

Reaction equation

HRID 533237 reaction equation
Br[C:2]1[CH:3]=[C:4]2[C:8](=[CH:9][CH:10]=1)[NH:7][C:6]([C:11]([O:13]CC)=[O:12])=[C:5]2[CH2:16][CH2:17][CH2:18][O:19][C:20]1[C:29]2[C:24](=[CH:25][CH:26]=[CH:27][CH:28]=2)[CH:23]=[CH:22][CH:21]=1.[C:30]1([CH2:36]/[CH:37]=[CH:38]/B(O)O)[CH:35]=[CH:34][CH:33]=[CH:32][CH:31]=1.[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:20]1([O:19][CH2:18][CH2:17][CH2:16][C:5]2[C:9]3[C:8](=[CH:4][CH:3]=[C:2](/[CH:38]=[CH:37]/[CH2:36][C:30]4[CH:35]=[CH:34][CH:33]=[CH:32][CH:31]=4)[CH:10]=3)[NH:7][C:6]=2[C:11]([OH:13])=[O:12])[C:29]2[C:24](=[CH:25][CH:26]=[CH:27][CH:28]=2)[CH:23]=[CH:22][CH:21]=1

Participants

5

Reactant 3

HCID 3939Lithium HydroxideHCID 11041016trans-3-Phenylpropen-1-yl-boronic acidHCID 67315656Ethyl 5-bromo-(3-(3-(naphthalen-1-yloxy)propyl))-1h-indole-2-carboxylate

Product 1

HCID 251002793-(3-(1-Naphthyloxy)propyl)-5-((1e)-3-phenylprop-1-enyl)-1h-indole-2-carboxylic acid

Reagents, catalysts & solvents 1

HCID 178418476HCID 178418476, compoundCatalyst

Procedure

A mixture of EXAMPLE 11C (45.2 mg), (E)-3-phenylprop-1-enylboronic acid (21.1 mg), bis(triphenylphosphine)palladium(II) dichloride (catalytic), and 2M LiOH (0.3 mL) in 7/2/3 dimethoxyethane/ethanol/H2O (2 mL) was heated under microwave (CEM Discover) conditions at 150° C. for 30 minutes. The mixture was quenched with 1 MHCl (0.4 mL) and extracted with ethyl acetate. The extract was dried (MgSO4), filtered, and concentrated. The cruconcentrate was purified by reverse phaseHPLC (Zorbax SB-C18, 20-100% acetonitrile/water/0.1% trifluoroacetic acid). 1H NMR (500 MHz, DMSO-d6) δ 12.95 (brs, 1H), 11.44 (s, 1H), 8.34 (d, 1H), 7.88 (d, 1H), 7.54 (m, 2H), 7.44 (m, 2H), 7.31 (m, 5H), 7.18 (m, 3H), 6.83 (d, 1H), 6.00 (m, 2H), 4.08 (t, 2H), 2.21 (m, 2H).

Workup

  1. customThe mixture was quenched with 1 MHCl (0.4 mL)
  2. extractionextracted with ethyl acetate
  3. dry with materialThe extract was dried (MgSO4)
  4. filtrationfiltered
  5. concentrationconcentrated
  6. customThe cruconcentrate was purified by reverse phaseHPLC (Zorbax SB-C18, 20-100% acetonitrile/water/0.1% trifluoroacetic acid)

Sources & evidence

ORD record
ord-5cea7f69c6344d3b98ff1262f18ad59f
Source dataset
uspto-grants-2014_10
Patent number
US08853209B2

Reaction notes

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