Multi-step reaction with 10 steps
1: Et3N / tetrahydrofuran / 0.42 h / -10 °C
2: aq. MH3 / tetrahydrofuran / 0.75 h / -10 °C
3: 85 percent / Lawesson's reagent / CH2Cl2 / 16 h / Ambient temperature
4: KHCO3 / 1,2-dimethoxy-ethane / 16 h / -15 °C
5: TFAA, 2,6-lutidine / 1,2-dimethoxy-ethane / 0.5 h / -10 °C
6: 87 percent / aq. LiOH / methanol / 3 h / Ambient temperature
7: N-methylmorpholine / tetrahydrofuran / 0.5 h / 0 °C
8: tetrahydrofuran / 0.75 h
9: 93 percent / aq. LiOH / methanol / Ambient temperature
10: EDCI / CH2Cl2 / 16 h / -10 - 20 °C
With
Lawessons reagent; 4-methyl-morpholine; 2,6-dimethylpyridine; lithium hydroxide; ammonium hydroxide; potassium hydrogencarbonate; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; triethylamine; trifluoroacetic anhydride;
In
tetrahydrofuran; methanol; 1,2-dimethoxyethane; dichloromethane;