Technology Process of tert-Butyl (4S)-3-<(2S)-2-amino>propionyl>-1-methyl-2-oxoimidazolidine-4-carboxylate Hydrogenmaleate
There total 14 articles about tert-Butyl (4S)-3-<(2S)-2-amino>propionyl>-1-methyl-2-oxoimidazolidine-4-carboxylate Hydrogenmaleate which
guide to synthetic route it.
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synthetic route:
- Guidance literature:
-
Multi-step reaction with 10 steps
1: 28percent aq. NH3 / 168 h / Ambient temperature
3: CoCl2 / H2O / 72 h / 37 °C / aminoacylase (from Aspergillus oryzae); pH 7
4: SOCl2
5: 43.6 percent / K2CO3 / dimethylsulfoxide / 30 h / Ambient temperature
6: ethyl acetate; diisopropyl ether
7: 96 percent / H2 / Pd / ethanol / 3 h / 760 Torr / Ambient temperature
8: DCC / tetrahydrofuran / Ambient temperature
9: 1) tBuOK / 1) THF, -50 deg C, 20 min, 2) THF, -30 deg C, 20 min
10: ethyl acetate; diisopropyl ether / 3 h / Ambient temperature
With
ammonium hydroxide; thionyl chloride; potassium tert-butylate; hydrogen; potassium carbonate; dicyclohexyl-carbodiimide;
palladium;
In
tetrahydrofuran; ethanol; di-isopropyl ether; water; dimethyl sulfoxide; ethyl acetate;
DOI:10.1021/jm00122a003
- Guidance literature:
-
Multi-step reaction with 8 steps
1: CoCl2 / H2O / 72 h / 37 °C / aminoacylase (from Aspergillus oryzae); pH 7
2: SOCl2
3: 43.6 percent / K2CO3 / dimethylsulfoxide / 30 h / Ambient temperature
4: ethyl acetate; diisopropyl ether
5: 96 percent / H2 / Pd / ethanol / 3 h / 760 Torr / Ambient temperature
6: DCC / tetrahydrofuran / Ambient temperature
7: 1) tBuOK / 1) THF, -50 deg C, 20 min, 2) THF, -30 deg C, 20 min
8: ethyl acetate; diisopropyl ether / 3 h / Ambient temperature
With
thionyl chloride; potassium tert-butylate; hydrogen; potassium carbonate; dicyclohexyl-carbodiimide;
palladium;
In
tetrahydrofuran; ethanol; di-isopropyl ether; water; dimethyl sulfoxide; ethyl acetate;
DOI:10.1021/jm00122a003
- Guidance literature:
-
Multi-step reaction with 7 steps
1: SOCl2
2: 43.6 percent / K2CO3 / dimethylsulfoxide / 30 h / Ambient temperature
3: ethyl acetate; diisopropyl ether
4: 96 percent / H2 / Pd / ethanol / 3 h / 760 Torr / Ambient temperature
5: DCC / tetrahydrofuran / Ambient temperature
6: 1) tBuOK / 1) THF, -50 deg C, 20 min, 2) THF, -30 deg C, 20 min
7: ethyl acetate; diisopropyl ether / 3 h / Ambient temperature
With
thionyl chloride; potassium tert-butylate; hydrogen; potassium carbonate; dicyclohexyl-carbodiimide;
palladium;
In
tetrahydrofuran; ethanol; di-isopropyl ether; dimethyl sulfoxide; ethyl acetate;
DOI:10.1021/jm00122a003