Diisopropylethylamine → racemic cis (1-benzenesulfonyl-5-nitro-1H-pyrrolo[2,3-b]pyridin-4-yl)-(1-benzyl-4-methyl-piperidin-3-yl)-amine

HRID 1257628Notes

Reaction equation

HRID 1257628 reaction equation
[C:1]1([S:7]([N:10]2[C:14]3=[N:15][CH:16]=[C:17]([N+:20]([O-:22])=[O:21])[C:18](Cl)=[C:13]3[CH:12]=[CH:11]2)(=[O:9])=[O:8])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[CH2:23]([N:30]1[CH2:35][CH2:34][C@H:33]([CH3:36])[C@H:32]([NH2:37])[CH2:31]1)[C:24]1[CH:29]=[CH:28][CH:27]=[CH:26][CH:25]=1.C(N(C(C)C)CC)(C)C>CC(O)C>[C:1]1([S:7]([N:10]2[C:14]3=[N:15][CH:16]=[C:17]([N+:20]([O-:22])=[O:21])[C:18]([NH:37][C@H:32]4[C@@H:33]([CH3:36])[CH2:34][CH2:35][N:30]([CH2:23][C:24]5[CH:29]=[CH:28][CH:27]=[CH:26][CH:25]=5)[CH2:31]4)=[C:13]3[CH:12]=[CH:11]2)(=[O:9])=[O:8])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1

Participants

5

Reactant 3

HCID 81531DiisopropylethylamineHCID 583947741-(benzenesulfonyl)-4-chloro-5-nitro-1H-pyrrolo(2,3-b)pyridineHCID 68592061(3S,4S)-1-benzyl-4-methylpiperidin-3-amine

Product 1

HCID 131730631racemic cis (1-benzenesulfonyl-5-nitro-1H-pyrrolo[2,3-b]pyridin-4-yl)-(1-benzyl-4-methyl-piperidin-3-yl)-amineYield 90%

Reagents, catalysts & solvents 1

HCID 3776IsopropanolSolvent

Procedure

A mixture of 1-benzenesulfonyl-4-chloro-5-nitro-1H-pyrrolo[2,3-b]pyridine (692 mg, 2.10 mmol), racemic cis 1-benzyl-4-methyl-piperidin-3-ylamine (460 mg, 2.30 mmol) and diisopropylethylamine (1.25 mL, 7.20 mmol) in propan-2-ol (30 mL) was heated to reflux for 2 hours. The cooled reaction mixture was filtered and the yellow solid dried under vacuum to afford 940 mg (90%) of racemic cis (1-benzenesulfonyl-5-nitro-1H-pyrrolo[2,3-b]pyridin-4-yl)-(1-benzyl-4-methyl-piperidin-3-yl)-amine. LCMS (Method H, ESI): RT=2.61 min, m+H=506.2; 1H NMR (400 MHz, DMSO) δ: 9.67 (d, 1H), 8.94 (s, 1H), 8.13 (dd, 2H), 7.75 (m, 2H), 7.66 (m, 2H), 7.30-7.10 (m, 6H), 4.54 (d, 1H), 3.49 (m, 2H) 2.83 (t, 2H), 2.27 (d, 1H), 2.07 (m, 1H), 1.91 (br s, 1H), 1.47 (m, 2H), 0.81 (d, 3H).

Workup

  1. temperaturewas heated
  2. temperatureto reflux for 2 hours
  3. customThe cooled reaction mixture
  4. filtrationwas filtered
  5. customthe yellow solid dried under vacuum

Sources & evidence

ORD record
ord-d19b2513b42541e89858acb7733634f2
Source dataset
uspto-grants-2013_06
Patent number
US08461328B2

Reaction notes

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