3-(1,2,3,6-Tetrahydropyridin-4-yl)-1H-indole → HCID 9952703, compound

HRID 1743106Notes

Reaction equation

HRID 1743106 reaction equation
CC1C=CC(S(O[CH2:12][C@@H:13]2[O:26][C:17]3=[C:18]4[C:23](=[CH:24][CH:25]=[C:16]3[O:15][CH2:14]2)[N:22]=[CH:21][CH:20]=[N:19]4)(=O)=O)=CC=1.[NH:27]1[CH2:32][CH:31]=[C:30]([C:33]2[C:41]3[C:36](=[CH:37][CH:38]=[CH:39][CH:40]=3)[NH:35][CH:34]=2)[CH2:29][CH2:28]1>CS(C)=O.C(OCC)(=O)C>[NH:35]1[C:36]2[C:41](=[CH:40][CH:39]=[CH:38][CH:37]=2)[C:33]([C:30]2[CH2:31][CH2:32][N:27]([CH2:12][CH:13]3[O:26][C:17]4=[C:18]5[C:23](=[CH:24][CH:25]=[C:16]4[O:15][CH2:14]3)[N:22]=[CH:21][CH:20]=[N:19]5)[CH2:28][CH:29]=2)=[CH:34]1

Participants

5

Reactant 2

HCID 27610233-(1,2,3,6-Tetrahydropyridin-4-yl)-1H-indoleHCID 12082517HCID 12082517, compound

Product 1

HCID 9952703HCID 9952703, compound

Reagents, catalysts & solvents 2

HCID 679Dimethyl SulfoxideSolventHCID 8857Ethyl AcetateSolvent

Conditions

Temperature
80 °C

Procedure

To a solution of (2R)-2,3-dihydro[1,4]dioxino[2,3-f]quinoxalin-2-ylmethyl 4-methylbenzenesulfonate (0.300 g, 0.856 mmole) in methyl sulfoxide (20 mL) was added 3-(1,2,3,6-tetrahydro-4-pyridinyl)-1H-indole (0.639 g, 3.222 mmole) and the reaction mixture was heated to 80° C. for 12 hours. The reaction mixture was allowed to cool to room temperature and was diluted with ethyl acetate (200 mL), washed with water (2×100 mL), aqueous sodium chloride (100 mL), dried (magnesium sulfate) and the solvent was removed in vacuo to give a crude solid. Purification by flash column chromatography (silica, methanol:ethyl acetate 1:9) followed by recrystallization from ethanol provided 0.248 g (77%) of the (S)-enantiomer of the title compound as a pale yellow solid. Rf=0.36 (silica, methanol:ethyl acetate 1:9); mp>220° C. dec.

Workup

  1. temperatureto cool to room temperature
  2. washwashed with water (2×100 mL), aqueous sodium chloride (100 mL)
  3. dry with materialdried (magnesium sulfate)
  4. customthe solvent was removed in vacuo
  5. customto give a crude solid
  6. customPurification by flash column chromatography (silica, methanol:ethyl acetate 1:9)
  7. customfollowed by recrystallization from ethanol

Sources & evidence

ORD record
ord-f27665dad70c498b8f2bce371cdef337
Source dataset
uspto-grants-2006_03
Patent number
US07008944B2

Reaction notes

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