Reaction #90010

ord-f6bef84f4e634f30a2ee33747ce7b2c4

Reaction equation

CC1(C)c2cc(OS(=O)(=O)C(F)(F)F)ccc2C(=O)c2c1[nH]c1cc(C#N)ccc21
Trifluoro-methanesulfonic acid 3-cyano-6,6-dimethyl-11-oxo-6,11-dihydro-5H-benzo[b]carbazol-8-yl ester
CC1(C)c2cc(OS(=O)(=O)C(F)(F)F)ccc2C(=O)c2c1[nH]c1cc(C#N)ccc21
Compound B1
CC1(C)c2cc(OS(=O)(=O)C(F)(F)F)ccc2C(=O)c2c1[nH]c1cc(C#N)ccc21
Trifluoro-methanesulfonic acid 3-cyano-6,6-dimethyl-11-oxo-6,11-dihydro-5H-benzo[b]carbazol-8-yl ester
CC(C)N1CCNCC1
1-isopropylpiperazine
→
CC(C)N1CCN(c2ccc3c(c2)C(C)(C)c2[nH]c4cc(C#N)ccc4c2C3=O)CC1
8-(4-Isopropyl-piperazin-1-yl)-6,6-dimethyl-11-oxo-6,11-dihydro-5H-benzo[b]carbazole-3-carbonitrile

Reactants

CC1(C)c2cc(OS(=O)(=O)C(F)(F)F)ccc2C(=O)c2c1[nH]c1cc(C#N)ccc21
Trifluoro-methanesulfonic acid 3-cyano-6,6-dimethyl-11-oxo-6,11-dihydro-5H-benzo[b]carbazol-8-yl ester
CC1(C)c2cc(OS(=O)(=O)C(F)(F)F)ccc2C(=O)c2c1[nH]c1cc(C#N)ccc21
Compound B1
CC1(C)c2cc(OS(=O)(=O)C(F)(F)F)ccc2C(=O)c2c1[nH]c1cc(C#N)ccc21
Trifluoro-methanesulfonic acid 3-cyano-6,6-dimethyl-11-oxo-6,11-dihydro-5H-benzo[b]carbazol-8-yl ester
CC(C)N1CCNCC1
1-isopropylpiperazine

Reagents

None

Solvents

CN1CCCC1=O
NMP

Conditions

Temperature
120°CELSIUS
Detailed conditions
See reaction.notes.procedure_details.

Workup

  1. 1
    TemperatureAfter cooling to room temperature
  2. 2
    Otherpurification
  3. 3
    Otherto obtain the target compound (white powder, 12.8 mg, 34%)

Procedure

Trifluoro-methanesulfonic acid 3-cyano-6,6-dimethyl-11-oxo-6,11-dihydro-5H-benzo[b]carbazol-8-yl ester (Compound B1, 40 mg, 0.0921 mmol) was dissolved in NMP (1 ml) and added with 1-isopropylpiperazine (236 mg, 20 eq.). The mixture was stirred at 120° C. for 3 hr. After cooling to room temperature, purification was carried out by HPLC to obtain the target compound (white powder, 12.8 mg, 34%).

Source

DOI: 10.6084/m9.figshare.5104873.v1Patent: US09440922B2uspto-grants-2016_09