Hydrochloric Acid → 3-[6,7,8,9-tetrahydro-8-[(diisopropylamino)methyl]pyrido[1,2-a]indol-10-yl]-4-(1-methyl-3-indolyl)-1H-pyrrole-2,5-dione hydrochloride

HRID 863699Notes

Reaction equation

HRID 863699 reaction equation
C(O[CH2:5][CH:6]1[CH2:35][CH2:34][N:9]2[C:10]3[C:15]([C:16]([C:17]4[C:18](=O)[O:19][C:20](=[O:32])[C:21]=4[C:22]4[C:30]5[C:25](=[CH:26][CH:27]=[CH:28][CH:29]=5)[N:24]([CH3:31])[CH:23]=4)=[C:8]2[CH2:7]1)=[CH:14][CH:13]=[CH:12][CH:11]=3)(=O)C.[N:36]1C(C)=CC(C)=CC=1C.FC(F)(F)S(OS(C(F)(F)F)(=O)=O)(=O)=O.[CH:60]([NH:63][CH:64]([CH3:66])[CH3:65])([CH3:62])[CH3:61].[ClH:67]>ClCCl.C(OCC)(=O)C>[ClH:67].[CH:60]([N:63]([CH2:5][CH:6]1[CH2:35][CH2:34][N:9]2[C:10]3[C:15]([C:16]([C:17]4[C:18](=[O:19])[NH:36][C:20](=[O:32])[C:21]=4[C:22]4[C:30]5[C:25](=[CH:26][CH:27]=[CH:28][CH:29]=5)[N:24]([CH3:31])[CH:23]=4)=[C:8]2[CH2:7]1)=[CH:14][CH:13]=[CH:12][CH:11]=3)[CH:64]([CH3:66])[CH3:65])([CH3:62])[CH3:61]

Participants

8

Reactant 5

HCID 313Hydrochloric AcidHCID 7912DiisopropylamineHCID 79532,4,6-TrimethylpyridineHCID 67749Trifluoromethanesulfonic anhydrideHCID 103898823-[8-(Acetoxymethyl)-6,7,8,9-tetrahydropyrido[1,2-a]indol-10-yl]-4-(1-methyl-3-indolyl)furan-2,5-dione

Product 1

HCID 196963523-[6,7,8,9-tetrahydro-8-[(diisopropylamino)methyl]pyrido[1,2-a]indol-10-yl]-4-(1-methyl-3-indolyl)-1H-pyrrole-2,5-dione hydrochloride

Reagents, catalysts & solvents 2

HCID 6344DichloromethaneSolvent2×HCID 8857Ethyl AcetateSolvent2×

Procedure

A solution of 0.8 g of the product of Example 1 and 0.44 g of 2,4,6-collidine in 30 ml of dichloromethane was added to a solution of 0.9 g of trifluoromethanesulfonic anhydride in 10 ml of dichloromethane at 0° C. After 1.5 hour, the mixture was treated with 3.64 g of diisopropylamine and stirred for 16 hours. The mixture was washed with water and then with saturated aqueous sodium bicarbonate solution, dried and concentrated. The solid obtained was dissolved in ethyl acetate and treated wish a saturated solution of hydrogen chloride in ethyl acetate. Removal of the solvent in vacuo gave 260 mg of 3-[6,7,8,9-tetrahydro-8-[(diisopropylamino)methyl]pyrido[1,2-a]indol-10-yl]-4-(1-methyl-3-indolyl)-1H-pyrrole-2,5-dione hydrochloride of melting point 187° C. (decomposition).

Workup

  1. washThe mixture was washed with water
  2. dry with materialwith saturated aqueous sodium bicarbonate solution, dried
  3. concentrationconcentrated
  4. customThe solid obtained
  5. additiontreated
  6. customRemoval of the solvent in vacuo

Sources & evidence

ORD record
ord-b3e7a1f564b54424ae90a970405fc0c0
Source dataset
uspto-grants-1998_02
Patent number
US05721245

Reaction notes

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