Multi-step reaction with 11 steps
1.1: 32 percent / zinc; acetic acid / 2 h / 80 °C
2.1: sodium methoxide / methanol / 1 h / 20 °C
3.1: pyridine / 15 h / 0 °C
3.2: 0.87 g / 4-dimethylaminopyridine / 17 h / 20 °C
4.1: dimethylformamide; H2O / 15 h / 110 °C
5.1: 0.34 g / sodium methoxide / methanol / 3 h / 20 °C
6.1: 85 percent / p-toluenesulfonic acid monohydrate / dimethylformamide / 2 h / 20 °C
7.1: 90 percent / m-chloroperbenzoic acid; sodium dihydrogen phosphate; sodium hydrogen phosphate / CH2Cl2; H2O / 3 h / 0 °C / pH 6
8.1: 98 percent / sodium azide / dimethylformamide / 48 h / 110 °C
9.1: hydrogen / palladium on carbon / ethanol / 4 h / 20 °C
10.1: 109 mg / acetic acid / H2O / 80 °C
11.1: 40 percent / propan-2-ol / 504000 h / 120 °C
With
pyridine; disodium hydrogenphosphate; sodium azide; sodium dihydrogen phosphate; hydrogen; sodium methylate; toluene-4-sulfonic acid; acetic acid; 3-chloro-benzenecarboperoxoic acid; zinc;
palladium on activated charcoal;
In
methanol; ethanol; dichloromethane; water; N,N-dimethyl-formamide; isopropyl alcohol;
2.1: Zemplen de-O-acetylation / 5.1: Zemplen de-O-acylation;
DOI:10.1016/j.bmc.2004.09.023