Multi-step reaction with 16 steps
1: 94 percent / DIBAH / toluene / 0.25 h / -78 °C
2: 90 percent / Et3N / CH2Cl2 / 12 h / Ambient temperature
3: 61 percent / BF3*Et2O / acetonitrile / 0.17 h / -35 °C
4: 92 percent / NaOMe / 1.5 h / Ambient temperature
5: 86 percent / DIBAH / CH2Cl2; hexane / 0.17 h / -78 °C
6: 1.) Mg, CuBr*Me2S / 1.) Et2O, r.t., 1 h; -78 to -30 deg C, 30 min, 2.) -78 deg C to r.t., overnight
7: 92 percent / aq. AcOH / tetrahydrofuran / 48 h / Ambient temperature
8: pyridine / CH2Cl2 / 20 h / 0 °C
9: K2CO3 / methanol / 2 h / Ambient temperature
10: AcOH / CH2Cl2 / 2 h / Ambient temperature
11: 1.) (COCl)2, DMSO, 2.) Et3N / 1.) CH2Cl2, -78 deg C, 15 min, 2.) -78 to 0 deg C, 30 min
12: 1.) Mg, CuBr*Me2S / 1.) Et2O, r.t., 1 h; -78 to -30 deg C, 30 min, 2.) -78 deg C to r.t., overnight
13: aq. AcOH / 22 h / Ambient temperature
14: pyridine / CH2Cl2 / 11 h / 0 °C
15: K2CO3 / methanol / 3 h / Ambient temperature
16: AcOH / CH2Cl2 / 2 h / Ambient temperature
With
pyridine; oxalyl dichloride; copper(I) bromide dimethylsulfide complex; boron trifluoride diethyl etherate; sodium methylate; diisobutylaluminium hydride; potassium carbonate; magnesium; acetic acid; dimethyl sulfoxide; triethylamine;
In
tetrahydrofuran; methanol; hexane; dichloromethane; toluene; acetonitrile;