Triethylamine → HCID 86641230, compound

HRID 1958739Notes

Reaction equation

HRID 1958739 reaction equation
Br[C:2]1[S:6][C:5]([S:7]([NH:10][C@@H:11]([CH2:23][N:24]([CH3:26])[CH3:25])[CH2:12][C:13]([O:15][CH2:16][C:17]2[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=2)=[O:14])(=[O:9])=[O:8])=[CH:4][CH:3]=1.[C:27]([C:29]1[CH:30]=[C:31]([CH3:35])[CH:32]=[CH:33][CH:34]=1)#[CH:28].C(N(CC)CC)C>C(OCC)(=O)C.O.[Cu](I)I.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>[CH3:25][N:24]([CH3:26])[CH2:23][C@H:11]([NH:10][S:7]([C:5]1[S:6][C:2]([C:28]#[C:27][C:29]2[CH:30]=[C:31]([CH3:35])[CH:32]=[CH:33][CH:34]=2)=[CH:3][CH:4]=1)(=[O:9])=[O:8])[CH2:12][C:13]([O:15][CH2:16][C:17]1[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=1)=[O:14]

Participants

8

Reactant 3

HCID 8471TriethylamineHCID 1366003-MethylphenylacetyleneHCID 59294388HCID 59294388, compound

Product 1

HCID 86641230HCID 86641230, compoundYield 100.7%

Reagents, catalysts & solvents 4

HCID 83717Copper iodideCatalystHCID 178418476HCID 178418476, compoundCatalystHCID 962WaterSolventHCID 8857Ethyl AcetateSolvent

Conditions

Temperature
60 °C

Procedure

A solution of (R)-benzyl 3-(5-bromothiophene-2-sulfonamido)-4-(dimethylamino)butanoate (25 mg, 0.05 mmol) and 3-ethynyltoluene (6 mg, 0.055 mmol) in ethyl acetate (0.5 mL) and H2O (50 μL) was purged with argon. Triethylamine (15 μL, 0.1 mmol), copper iodide (0.5 mg, 0.05 eq) and Bis(triphenylphosphine)palladium(II) dichloride (0.9 mg, 0.025 eq) were added and the solution was heated to 60° C. for 2 h. The mixture was cooled and purified by silica gel chromatography (CH2Cl2 to 2% MeOH in CH2Cl2) to give the title compound as a green oil (25 mg, 92%). MS ESI 497.3 [M+H]+, calcd for [C26H28N2O4S+H]+ 497.15.

Workup

  1. temperatureThe mixture was cooled
  2. custompurified by silica gel chromatography (CH2Cl2 to 2% MeOH in CH2Cl2)

Sources & evidence

ORD record
ord-1e886be3b9414e0f8b57d45dca834e35
Source dataset
uspto-grants-2013_04
Patent number
US08410150B2

Reaction notes

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