Multi-step reaction with 11 steps
1: 83 percent / pyridine / 1 h / 20 °C
2: 77 percent / sodium hydride / dimethylformamide / 10 h / -10 - 20 °C
3: 94 percent / LiBH4 / tetrahydrofuran; methanol / 1 h / 0 °C
4: 93 percent / triethylamine; 4-(dimethylamino)pyridine / CH2Cl2 / 20 °C
5: 96 percent / LiN3 / dimethylformamide / 1.5 h / 90 °C
6: 100 percent / hydrogen / Lindlar catalyst / tetrahydrofuran / 20 °C
7: 89 percent / triethylamine / 4 h / 20 °C
8: 91 percent / acetic acid; H2SO4 / 14 h / 20 °C
9: 55 percent / N,O-bis(trimethylsilyl) acetamide; SnCl4 / acetonitrile / 2 h / 0 °C
10: 90 percent / Na2CO3 / methanol / 0.5 h / 20 °C
11: 75 percent / pyridine / 5 h / 20 °C
With
pyridine; dmap; lithium borohydride; N,O-bis-(trimethylsilyl)-acetamide; lithium azide; sulfuric acid; hydrogen; tin(IV) chloride; sodium hydride; sodium carbonate; acetic acid; triethylamine;
Lindlar's catalyst;
In
tetrahydrofuran; methanol; dichloromethane; N,N-dimethyl-formamide; acetonitrile;
DOI:10.1081/NCN-120022835