Multi-step reaction with 8 steps
1.1: 100 percent / hydrogen / Pd/C / ethyl acetate / 18 h
2.1: 1-bromocarbonyl-1-methylethyl acetate / CHCl3 / 3 h / 20 °C
2.2: 73 percent / NaOMe / tetrahydrofuran / 4 h / 20 °C
3.1: 100 percent / propan-2-ol / 4 h / 86 °C
4.1: 885.8 mg / K2CO3 / isopropyl acetate; H2O / 30 h / 56 °C
5.1: 80 percent / isopropyl acetate / 0.5 h / 85 °C
6.1: 1-hydroxybenzotriazole hydrate; 4-methylmorpholine; 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride / dimethylformamide
6.2: dimethylformamide
6.3: 84 percent / methanesulfonic acid / isopropyl acetate / 0.5 h / 85 °C
7.1: 91 percent / 1-hydroxybenzotriazole hydrate; 4-methylmorpholine; 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride / dimethylformamide
8.1: hydrogen / Pd/C / methanol / 3 h / 20 °C
8.2: 61 percent / trifluoroacetic acid; triethylsilane / CH2Cl2 / 2 h / 20 °C
With
4-methyl-morpholine; acetoxyisobutyryl bromide; hydrogen; potassium carbonate; 1-hydroxybenzotriazol-hydrate; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride;
palladium on activated charcoal;
In
methanol; chloroform; Isopropyl acetate; water; ethyl acetate; N,N-dimethyl-formamide; isopropyl alcohol;
DOI:10.1002/jlcr.870