Water → 8-{2-(Tert-butyloxycarbonylaminosulfonyl)amino-ethoxy}-6,6-dimethyl-11-oxo-6,11-dihydro-5H-benzo[b]carbazole-3-carbonitrile

HRID 2275098Notes

Reaction equation

HRID 2275098 reaction equation
FC(F)(F)C(O)=O.[NH2:8][CH2:9][CH2:10][O:11][C:12]1[CH:13]=[CH:14][C:15]2[C:27](=[O:28])[C:26]3[C:25]4[C:20](=[CH:21][C:22]([C:29]#[N:30])=[CH:23][CH:24]=4)[NH:19][C:18]=3[C:17]([CH3:32])([CH3:31])[C:16]=2[CH:33]=1.[C:34]([O:38][C:39]([N-:41][S:42](N1C=CC(=[N+](C)C)C=C1)(=[O:44])=[O:43])=[O:40])([CH3:37])([CH3:36])[CH3:35].O>N1C=CC=CC=1>[C:34]([O:38][C:39]([NH:41][S:42]([NH:8][CH2:9][CH2:10][O:11][C:12]1[CH:13]=[CH:14][C:15]2[C:27](=[O:28])[C:26]3[C:25]4[C:20](=[CH:21][C:22]([C:29]#[N:30])=[CH:23][CH:24]=4)[NH:19][C:18]=3[C:17]([CH3:31])([CH3:32])[C:16]=2[CH:33]=1)(=[O:44])=[O:43])=[O:40])([CH3:37])([CH3:35])[CH3:36]

Participants

6

Reactant 4

HCID 962WaterHCID 6422Trifluoroacetic acidHCID 668337928-(2-amino-ethoxy)-6,6-dimethyl-11-oxo-6,11-dihydro-5H-benzo[b]carbazole-3-carbonitrileHCID 178482962HCID 178482962, compound

Product 1

HCID 668341498-{2-(Tert-butyloxycarbonylaminosulfonyl)amino-ethoxy}-6,6-dimethyl-11-oxo-6,11-dihydro-5H-benzo[b]carbazole-3-carbonitrileYield 69.8%

Reagents, catalysts & solvents 1

HCID 1049PyridineSolvent

Procedure

Trifluoroacetic acid salt of 8-(2-amino-ethoxy)-6,6-dimethyl-11-oxo-6,11-dihydro-5H-benzo[b]carbazole-3-carbonitrile (Compound A8-2, 20 mg, 0.044 mmol) was dissolved in pyridine (0.5 mL), added with N-(tert-butoxycarbonyl)-N-[4-(dimethyl azaniumylidene)-1,4-dihydropyridin-1-yl sulfonyl]azanide (13.5 mg, 1 eq.), and then stirred at room temperature for 14 hr. The reaction solution was added to water, and then extracted with ethyl acetate. After washing with saturated brine, the organic layer was dried over sodium sulfate. The drying agent was removed by filtration and the residues obtained after concentration under reduced pressure were separated by silica gel preparative TLC (ethyl acetate) to obtain the title compound (16.1 mg, 68%).

Workup

  1. extractionextracted with ethyl acetate
  2. washAfter washing with saturated brine
  3. dry with materialthe organic layer was dried over sodium sulfate
  4. customThe drying agent was removed by filtration
  5. customthe residues obtained
  6. concentrationafter concentration under reduced pressure
  7. customwere separated by silica gel preparative TLC (ethyl acetate)

Sources & evidence

ORD record
ord-fdf5796fbc3645ebaba2abe119b10398
Source dataset
uspto-grants-2015_09
Patent number
US09126931B2

Reaction notes

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