HomeMCPWorkbenchSkills
HomeWorkbenchNotificationsMe
llms.txt · MCP GuidePrivacy Policy · Terms of Service · Supportv1.8.0
  1. Home
  2. /Reaction

Dimethyl Sulfoxide → (S)-6-Fluoro-10-[3-(2-methoxy-ethyl)-piperazin-1-yl]-4H-3-thia-4,9-diaza-benzo[f]azulene

HRID 131443
Notes
Print preview

Reaction equation

HRID 131443 reaction equation
Cl.[F:2][C:3]1[CH:4]=[CH:5][C:6]2[N:15]=[C:14]([NH2:16])[C:13]3[CH:12]=[CH:11][S:10][C:9]=3[NH:8][C:7]=2[CH:17]=1.[CH3:18][O:19][CH2:20][CH2:21][C@H:22]1[CH2:27]N[CH2:25][CH2:24][NH:23]1.CS(C)=O.C1(C)C=CC=CC=1>C(OCC)(=O)C>[F:2][C:3]1[CH:4]=[CH:5][C:6]2[N:15]=[C:14]([N:16]3[CH2:25][CH2:24][NH:23][C@@H:22]([CH2:21][CH2:20][O:19][CH3:18])[CH2:27]3)[C:13]3[CH:12]=[CH:11][S:10][C:9]=3[NH:8][C:7]=2[CH:17]=1
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

6

Reactant 4

HCID 679Dimethyl SulfoxideHCID 1140TolueneHCID 55287560(S)-2-(2-Methoxyethyl)piperazineHCID 692151706-Fluoro-4H-3-thia-4,9-diaza-benzo[f]azulen-10-ylamine hydrochloride

Product 1

HCID 10021439(S)-6-Fluoro-10-[3-(2-methoxy-ethyl)-piperazin-1-yl]-4H-3-thia-4,9-diaza-benzo[f]azuleneYield 25%

Reagents, catalysts & solvents

1
HCID 8857Ethyl AcetateSolvent

Conditions

Temperature
105 °C

Procedure

Combine 6-fluoro-4H-3-thia-4,9-diaza-benzo[f]azulen-10-ylamine hydrochloride (1.20 g, 4.45 mmol), (S)-2(2-methoxy-ethyl)-piperazine (1.60 g, 11.12 mmol), DMSO (4.0 ml), and toluene (16.0 ml). Stir and heat the mixture at 105° C. After 40 hours, cool the mixture to ambient temperature. Dilute the mixture with ethyl acetate and wash the organic layer with 0.1N NaOH and brine. Dry (sodium sulfate) and concentrate the organic layer to residue. Purify the residue on silica gel using a gradient of dichloromethane to dichloromethane/methanol (90:10) to give 400.4 mg (25%) of a tan foam: mass spectrum (ion spray): m/z 361.1 (M+1).

Workup

  1. temperaturecool the mixture to ambient temperature
  2. washwash the organic layer with 0.1N NaOH and brine
  3. dry with materialDry (sodium sulfate)
  4. concentrationconcentrate the organic layer to residue
  5. customPurify the residue on silica gel using a gradient of dichloromethane to dichloromethane/methanol (90:10)

Sources & evidence

ORD record
ord-f9c1869940eb4280b555054d3824acdb
Source dataset
uspto-grants-2008_06
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US07384934B2

Reaction notes

Loading…

On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes