Technology Process of 4,4-difluoro-8-[2-oxo-2-(5-sulfamoyl-1,3,4-thiazol-2-ylamino)ethyl]benzamido-1,3,5,7-tetramethyl-4-bora-3a,4a-diaza-s-indacene
There total 2 articles about 4,4-difluoro-8-[2-oxo-2-(5-sulfamoyl-1,3,4-thiazol-2-ylamino)ethyl]benzamido-1,3,5,7-tetramethyl-4-bora-3a,4a-diaza-s-indacene which
guide to synthetic route it.
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synthetic route:
- Guidance literature:
-
With
[(benzotriazol-1-yloxy)P(NMe2)3]PF6; EtN(i-Pr)2;
In
N,N-dimethyl-formamide;
1.5 equiv. of ((benzotriazol-1-yloxy)P(NMe2)3)PF6 added to soln. of 1.5 equiv. of EtN(i-Pr)2 and 1 equiv. of complex in DMF at 0°C; stirred for 30 min; 1.2 equiv. of amine added; warmed to room temp. and stirred for 12 h; evapd. (vac.); dissolved (CHCl3); washed (1 M HCl; satd. aq. NaHCO3; H2O; brine); soln. dried (MgSO4); evapd. (vac.); chromy. (SiO2, 0-7 % MeOH in CHCl3); elem. anal.;
DOI:10.1002/ejic.201101371
- Guidance literature:
-
Multi-step reaction with 2 steps
1.1: trifluoroacetic acid / dichloromethane / 1 h / 20 °C / Inert atmosphere
1.2: 1 h / Inert atmosphere
2.1: (benzotriazo-1-yloxy)tris(dimethylamino)phosphonium hexafluorophosphate; N-ethyl-N,N-diisopropylamine / N,N-dimethyl-formamide / 0.5 h / 0 °C / Inert atmosphere
2.2: 12 h / 20 °C / Inert atmosphere
With
(benzotriazo-1-yloxy)tris(dimethylamino)phosphonium hexafluorophosphate; N-ethyl-N,N-diisopropylamine; trifluoroacetic acid;
In
dichloromethane; N,N-dimethyl-formamide;
DOI:10.1002/ejic.201101371