Ethyl Acetate → 3-Chloro-8-((R)-2,3-dihydroxy-propoxy)-6,6-dimethyl-11-oxo-6,11-dihydro-5H-benzo[b]carbazole-9-carbonitrile

HRID 61836Notes

Reaction equation

HRID 61836 reaction equation
[Cl:1][C:2]1[CH:14]=[C:13]2[C:5]([C:6]3[C:7](=[O:31])[C:8]4[CH:20]=[C:19](Br)[C:18]([O:22][CH2:23][C@H:24]5[CH2:28][O:27]C(C)(C)[O:25]5)=[CH:17][C:9]=4[C:10]([CH3:16])([CH3:15])[C:11]=3[NH:12]2)=[CH:4][CH:3]=1.[C:32]([Cu])#[N:33].C(OCC)(=O)C>CC(N(C)C)=O>[Cl:1][C:2]1[CH:14]=[C:13]2[C:5]([C:6]3[C:7](=[O:31])[C:8]4[CH:20]=[C:19]([C:32]#[N:33])[C:18]([O:22][CH2:23][C@H:24]([OH:25])[CH2:28][OH:27])=[CH:17][C:9]=4[C:10]([CH3:15])([CH3:16])[C:11]=3[NH:12]2)=[CH:4][CH:3]=1

Participants

5

Reactant 3

HCID 8857Ethyl AcetateHCID 668343203-Chloro-9-bromo-8-((S)-2,2-dimethyl-[1,3]dioxolan-4-yl methoxy)-6,6-dimethyl-5,6-dihydro-benzo[b]carbazol-11-oneHCID 178418546HCID 178418546, compound

Product 1

HCID 668351033-Chloro-8-((R)-2,3-dihydroxy-propoxy)-6,6-dimethyl-11-oxo-6,11-dihydro-5H-benzo[b]carbazole-9-carbonitrileYield 26.3%

Reagents, catalysts & solvents 1

HCID 31374DimethylacetamideSolvent

Conditions

Temperature
220 °C

Procedure

3-Chloro-9-bromo-8-((S)-2,2-dimethyl-[1,3]dioxolan-4-yl methoxy)-6,6-dimethyl-5,6-dihydro-benzo[b]carbazol-11-one (Compound S7-2, 17 mg, 37 μmol) was dissolved in DMA, added with CuCN (17 mg, 5 eq.), and stirred at 220° C. for 2 hr under irradiation with microwave. After cooling, the reaction solution was added with ethyl acetate, and the precipitated solid was filtered to remove the solvent. The resulting residues were purified by HPLC to obtain the title compound (4 mg).

Workup

  1. temperatureAfter cooling
  2. filtrationthe precipitated solid was filtered
  3. customto remove the solvent
  4. customThe resulting residues were purified by HPLC

Sources & evidence

ORD record
ord-0812c9f5ecf445a88f567828d32647e4
Source dataset
uspto-grants-2016_09
Patent number
US09440922B2

Reaction notes

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