Indole-3-acetamide → 3-(5,6-Dihydro-4H-pyrrolo[3,2,1-ij]quinolin-1-yl)-4-(1H-indol-3-yl)-1H-pyrrole-2,5-dione

HRID 2234872Notes

Reaction equation

HRID 2234872 reaction equation
[C:1]1([C@H:13]2[C@@H:17]([C:18]3[C:26]4[C:21](=[CH:22][CH:23]=[CH:24][CH:25]=4)[NH:20][CH:19]=3)[C:16](=[O:27])[NH:15][C:14]2=[O:28])[C:11]2=[C:12]3[C:7](=[CH:8][CH:9]=[CH:10]2)[CH2:6][CH2:5][CH2:4][N:3]3[CH:2]=1.N1C2C(=CC=CC=2)CCC1.N1C2C(=CC=CC=2)C(CC(N)=O)=C1.COC(=O)C=O>>[C:1]1([C:13]2[C:14](=[O:28])[NH:15][C:16](=[O:27])[C:17]=2[C:18]2[C:26]3[C:21](=[CH:22][CH:23]=[CH:24][CH:25]=3)[NH:20][CH:19]=2)[C:11]2=[C:12]3[C:7](=[CH:8][CH:9]=[CH:10]2)[CH2:6][CH2:5][CH2:4][N:3]3[CH:2]=1

Participants

5

Reactant 4

HCID 397Indole-3-acetamide2×HCID 694601,2,3,4-Tetrahydroquinoline2×HCID 70205Acetic acid, 2-oxo-, methyl ester2×HCID 11717641(+)-cis-3-(5,6-dihydro-4H-pyrrolo[3,2,1-ij]quinolin-1-yl)-4(1H-indol-3-yl)pyrrolidine-2,5-dione2×

Product 1

HCID 99692093-(5,6-Dihydro-4H-pyrrolo[3,2,1-ij]quinolin-1-yl)-4-(1H-indol-3-yl)-1H-pyrrole-2,5-dione

Procedure

Preferred embodiments of the invention include mixtures of compounds of formulas IVa and IVb, including racemic mixtures. In another preferred embodiment, the compounds of formula IVa and IVb are the separate enantiomers of (±)-cis-3-(5,6-dihydro-4H-pyrrolo[3,2,1-ij]quinolin-1yl)-4(1H-indol-3-yl)pyrrolidine-2,5-dione. In this embodiment the preparation of (±)-cis-3-(5,6-dihydro-4H-pyrrolo[3,2,1-ij]quinolin-1yl)-4(1H-indol-3-yl)pyrrolidine-2,5-dione is prepared as a mixture beginning with the starting materials 1,2,3,4-tetrahydroquinoline and indole-3-acetamide. The 1,2,3,4-tetrahydroquinoline is converted into 5,6-dihydro-4H-pyrrolo[3,2,1-ij]quinolin-1-yl) oxoacetic acid methyl ester as described in Example 1, steps 1-5. The 5,6-dihydro-4H-pyrrolo[3,2,1-ij]quinolin-1-yl) oxoacetic acid methyl ester is reacted with indole-3-acetamide as described in Example 1, step 6, to yield 3-(5,6-dihydro-4H-pyrrolo[3,2,1-ij]quinolin-1yl)-4(1H-indol-3-yl) pyrrole-2,5-dione. The mixture of (±)-cis-3-(5,6-dihydro-4H-pyrrolo[3,2,1-ij]quinolin-1yl)-4(1H-indol-3-yl)pyrrolidine-2,5-dione is then prepared by catalytic hydrogenation as described in Example 2 using Procedure B.

Workup

  1. customis prepared as a mixture

Sources & evidence

ORD record
ord-e93b7a2c892045cfb0d5d3831bc7f80c
Source dataset
uspto-grants-2010_05
Patent number
US07713969B2

Reaction notes

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