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 2275212Notes

Reaction equation

HRID 2275212 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 5.1%

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 mmol) 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-aceac6d5b87c4629af7e0bfcb73f49c0
Source dataset
uspto-grants-2015_09
Patent number
US09126931B2

Reaction notes

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