Tributyl(2,3-dihydrofuran-5-yl)stannane → 2-(3-methoxyphenyl)-9-(tetrahydrofuran-2-yl)-7,8-dihydro-[1,4]diazepino[7,1-a]isoquinolin-5(4H)-one

HRID 532916Notes

Reaction equation

HRID 532916 reaction equation
[O:1]1[CH2:5][CH2:4][CH:3]=[C:2]1[C:6]1[CH:15]=[CH:14][CH:13]=[C:12]2[C:7]=1[CH2:8][CH2:9][N:10]1[C:20](=[O:21])[CH2:19][N:18]=[C:17]([C:22]3[CH:27]=[CH:26][CH:25]=[C:24]([O:28][CH3:29])[CH:23]=3)[CH:16]=[C:11]12.IC1C=CC=C2C=1CCN1C(=O)CN=C(C3C=CC=C(OC)C=3)C=C12.C([Sn](CCCC)(CCCC)C1OCCC=1)CCC>O1CCOCC1.CCOC(C)=O.CCCCCCC.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>[CH3:29][O:28][C:24]1[CH:23]=[C:22]([C:17]2[CH:16]=[C:11]3[C:12]4[C:7]([CH2:8][CH2:9][N:10]3[C:20](=[O:21])[CH2:19][N:18]=2)=[C:6]([CH:2]2[CH2:3][CH2:4][CH2:5][O:1]2)[CH:15]=[CH:14][CH:13]=4)[CH:27]=[CH:26][CH:25]=1

Participants

8

Reactant 3

HCID 14323397Tributyl(2,3-dihydrofuran-5-yl)stannaneHCID 867113559-iodo-2-(3-methoxyphenyl)-7,8-dihydro-[1,4]diazepino[7,1-a]isoquinolin-5(4H)-oneHCID 867113619-(4,5-dihydrofuran-2-yl)-2-(3-methoxyphenyl)-7,8-dihydro-[1,4]diazepino[7,1-a]isoquinolin-5(4H)-one

Product 1

HCID 899795192-(3-methoxyphenyl)-9-(tetrahydrofuran-2-yl)-7,8-dihydro-[1,4]diazepino[7,1-a]isoquinolin-5(4H)-one

Reagents, catalysts & solvents 4

HCID 178418397HCID 178418397, compoundCatalystHCID 8857Ethyl AcetateSolventHCID 8900HeptaneSolventHCID 312751,4-DioxaneSolvent

Conditions

Temperature
150 °C

Procedure

9-(4,5-dihydrofuran-2-yl)-2-(3-methoxyphenyl)-7,8-dihydro-[1,4]diazepino[7,1-a]isoquinolin-5(4H)-one. 57-1. A mixture of 9-iodo-2-(3-methoxyphenyl)-7,8-dihydro-[1,4]diazepino[7,1-a]isoquinolin-5(4H)-one (Example 30) (1.0 g, 2.25 mmol), tributyl(4,5-dihydrofuran-2-yl)stannane (1.21 g, 3.38 mmol) and Pd(PPh3)4(0.13 g, 0.11 mmol) in 1,4-dioxane (10 mL) was heated in a microwave reactor at 150° C. for 90 min. The mixture was then diluted with AcOEt and filtered. The filtrate was concentrated in vacuo and the crude product obtained was purified by flash chromatography (SiO2, heptane to heptane/AcOEt 1:1) to give a brown solid, which was suspended in heptane and heated to reflux. The suspension was then allowed to cool to RT and then filtered. The filter cake was then dried in vacuo to afford the title compound (543 mg) as a beige solid. UPLC-MS: MS 387.2 (M+H+); UPLC rt 1.10 min.

Workup

  1. filtrationfiltered
  2. concentrationThe filtrate was concentrated in vacuo
  3. customthe crude product obtained
  4. customwas purified by flash chromatography (SiO2, heptane to heptane/AcOEt 1:1)
  5. customto give a brown solid, which
  6. temperatureheated to reflux
  7. temperatureto cool to RT
  8. filtrationfiltered
  9. customThe filter cake was then dried in vacuo

Sources & evidence

ORD record
ord-7612c8319c6740cb8fa8721b213f4675
Source dataset
uspto-grants-2014_10
Patent number
US08853203B2

Reaction notes

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