hydrogenchloride 1 h; Ambient temperature;

Multi-step reaction with 20 steps 1: pyridine / -30 °C2: NaN3 / dimethylsulfoxide / 2 h / 65 °C3: pyridine, CrO3 / CH2Cl2 / 0.5 h / Ambient temperature4: H2 / Raney Ni / methanol / 2 h / Ambient temperature5: 93 percent / imidazole / dimethylformamide / 2 h / Ambient temperature6: 96 percent / NaH / dimethylformamide / 2 h / Ambient temperature7: 92 percent / sodium borohydride / ethanol / Ambient temperature8: 1) dimethyl sulfoxide, oxalyl dichloride; 3) triethylamine / 1) CH2Cl2, -60 deg C, 5 min; 2) CH2Cl2, -60 deg C, 15 min; 3) CH2Cl2, -60 deg C, 10 min, then room temp.9: 98 percent / triphenylphosphine, diethyl azodicarboxylate / dimethylformamide / Ambient temperature10: 1.) hydrazine, 2.) pyridine / 1.) methanol, 30 deg C, 1 d, 2.) RT, overnight11: 95 percent / tetrabutylammonium fluoride / tetrahydrofuran / 1 h / Ambient temperature12: 98 percent / RuO4 / CCl4; CH2Cl2 / 1 h / Ambient temperature13: 100 percent / NaH / 1,2-dimethoxy-ethane / 2 h / Ambient temperature14: 1.) acetic anhydride, p-toluenesulfonic acid, 2.) K2CO3 / 1.) RT, overnight, 2.) benzene, RT, overnight15: pyridine / 168 h / 38 °C16: aq. NaClO2, aq. NaH2PO4 / 2-methyl-propan-2-ol; various solvent(s) / 24 h / Ambient temperature17: N,N-diisopropylethylamine / CH2Cl2 / 1 h / Ambient temperature18: 81 percent / NaBH4 / tetrahydrofuran; various solvent(s) / 3 h / Ambient temperature19: 70 percent / pyridinium dichromate / dimethylformamide / Ambient temperature20: 90 percent / H2 / 5percent Pd/C / methanol / 1 h / Ambient temperature