Technology Process of 5-<4-(3-aminopropionylamino)benzyl>thiazolidine-2,4-dione hydrobromide
There total 4 articles about 5-<4-(3-aminopropionylamino)benzyl>thiazolidine-2,4-dione hydrobromide which
guide to synthetic route it.
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synthetic route:
- Guidance literature:
-
Multi-step reaction with 4 steps
1: 2.) 2N HCl / 1.) sulfolane, 120 deg C, 5 h; 2.) sulfolane, 100 deg C, 15 h
2: 88.6 percent / hydrogen / 10percent Pd-C / methanol; ethyl acetate / 760 Torr / Ambient temperature
3: 1.) Et3N, ethyl chloroformate; 2.) Et3N / 1.) ice-cooling, 15 min; 2.) CH2Cl2, room temp., overnight
4: 61.4 percent / HBr / acetic acid / 0.5 h / Ambient temperature
With
hydrogenchloride; hydrogen bromide; hydrogen; chloroformic acid ethyl ester; triethylamine;
palladium on activated charcoal;
In
methanol; acetic acid; ethyl acetate;
DOI:10.1248/cpb.30.3580
- Guidance literature:
-
Multi-step reaction with 5 steps
1: 1.) NaNO2, conc. HCl, 2.) Cu2O / 1.) acetone, water, 5 deg C, 30 min, 2.) acetone, water, 10 deg C
2: 2.) 2N HCl / 1.) sulfolane, 120 deg C, 5 h; 2.) sulfolane, 100 deg C, 15 h
3: 88.6 percent / hydrogen / 10percent Pd-C / methanol; ethyl acetate / 760 Torr / Ambient temperature
4: 1.) Et3N, ethyl chloroformate; 2.) Et3N / 1.) ice-cooling, 15 min; 2.) CH2Cl2, room temp., overnight
5: 61.4 percent / HBr / acetic acid / 0.5 h / Ambient temperature
With
copper(I) oxide; hydrogenchloride; hydrogen bromide; hydrogen; chloroformic acid ethyl ester; triethylamine; sodium nitrite;
palladium on activated charcoal;
In
methanol; acetic acid; ethyl acetate;
DOI:10.1248/cpb.30.3580
- Guidance literature:
-
Multi-step reaction with 3 steps
1: 88.6 percent / hydrogen / 10percent Pd-C / methanol; ethyl acetate / 760 Torr / Ambient temperature
2: 1.) Et3N, ethyl chloroformate; 2.) Et3N / 1.) ice-cooling, 15 min; 2.) CH2Cl2, room temp., overnight
3: 61.4 percent / HBr / acetic acid / 0.5 h / Ambient temperature
With
hydrogen bromide; hydrogen; chloroformic acid ethyl ester; triethylamine;
palladium on activated charcoal;
In
methanol; acetic acid; ethyl acetate;
DOI:10.1248/cpb.30.3580