Multi-step reaction with 13 steps
1.1: 49 percent / triphenylphosphine; diethyl azodicarboxylate / tetrahydrofuran / 24 h / 20 °C
2.1: 98 percent / H2 / Pd/C / ethyl acetate / 24 h / 20 °C
3.1: lithium hexamethyldisilylamide / tetrahydrofuran / 1 h / -78 °C
3.2: tetrahydrofuran / -78 °C
4.1: 86 percent / LiAlH4 / tetrahydrofuran / -78 °C
5.1: 69 percent / diisopropyl azodicarboxylate; triphenylphosphine / tetrahydrofuran / 15 h / 20 °C
6.1: 87 percent / hydrazine / ethanol; H2O / 3 h / Heating
7.1: 97 percent / diisopropylcarbodidiimide; 1-hydroxybenzotriazole / dimethylformamide / 12 h / 20 °C
8.1: trifluoroacetic acid / CH2Cl2 / 1 h / 20 °C
9.1: 92 percent / diisopropylcarbodiimide; 1-hydroxybenzotriazole / dimethylformamide / 12 h / 20 °C
10.1: 90 percent / piperidine / acetonitrile / 2 h / 20 °C
11.1: 65 percent / 1-hydroxy-7-azabenzotriazole; 1-ethyl-3-(3'-dimethylaminopropyl)carbodiimide hydrochloride / dimethylformamide / 24 h / 50 °C
12.1: 66 percent / second generation Grubbs' catalyst / CH2Cl2 / 48 h / Heating
13.1: 80 percent / 1-ethyl-3-(3'-dimethylaminopropyl)carbodiimide hydrochloride; 4-(dimethylamino)pyridine / dimethylformamide / 12 h / 20 °C
With
piperidine; tricyclohexylphosphine[1,3-bis(2,4,6-trimethylphenyl)-4,5-dihydroimidazol-2-ylidine][benzylidene]ruthenium(II) dichloride; dmap; lithium aluminium tetrahydride; 1-hydroxy-7-aza-benzotriazole; di-isopropyl azodicarboxylate; hydrogen; benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; triphenylphosphine; trifluoroacetic acid; lithium hexamethyldisilazane; hydrazine; diisopropyl-carbodiimide; diethylazodicarboxylate;
palladium on activated charcoal;
In
tetrahydrofuran; ethanol; dichloromethane; water; ethyl acetate; N,N-dimethyl-formamide; acetonitrile;
5.1: Mitsunobu reaction;
DOI:10.1016/j.bmc.2005.04.028