Multi-step reaction with 17 steps
1.1: LDA / tetrahydrofuran; hexane / 24 h / 0 °C
1.2: tetrahydrofuran; hexane / -100 - 0 °C
2.1: 98 percent / magnesium monoperoxyphthalate hexahydrate / methanol; diethyl ether / 0.08 h / 0 °C
3.1: 76 percent / pyridinium*HF / tetrahydrofuran / 0.25 h
4.1: 68 percent / PdCl2*(MeCN)2 / dimethylformamide
5.1: 94 percent / hexachloroacetone; PPh3 / CH2Cl2 / -78 - 0 °C
6.1: Cs2CO3; CsI / acetonitrile / 14 h / 80 °C / high dilution
7.1: TBAF / tetrahydrofuran / 3 h / 23 °C
8.1: Dess-Martin periodinane / CH2Cl2 / 1 h / 0 °C
9.1: 75 percent / MeAlCl2 / hexane; CH2Cl2 / 7 h / 23 °C
10.1: 92 percent / H2O / dimethylsulfoxide / 2.5 h / 155 °C
11.1: 98 mg / hexane; tetrahydrofuran / 1 h / -78 °C
12.1: 87 percent / H2; AcOH / Pd/C / ethyl acetate / 4 h / 23 °C / 750.08 Torr
13.1: 100 percent / t-BuOK / 2-methyl-propan-2-ol / 2.5 h / 85 °C
14.1: 68 percent / AcOH; H3PO4 / H2O / 37 h / 110 °C
15.1: H2 / Pt/C / ethyl acetate / 3 h / 30003 Torr
15.2: 84 percent / Dess-Martin periodinane / CH2Cl2 / 10 h / 0 - 23 °C
16.1: 49 percent / diethyl ether
17.1: 87 percent / NaBH4 / methanol
With
dichloro bis(acetonitrile) palladium(II); sodium tetrahydroborate; isocyanate de chlorosulfonyle; 1,1,1,3,3,3-hexachloro-propan-2-one; phosphoric acid; potassium tert-butylate; tetrabutyl ammonium fluoride; water; hydrogen; methylaluminum dichloride; caesium carbonate; Dess-Martin periodane; pyridine hydrogenfluoride; magnesium monoperoxyphthalate hexahydrate; acetic acid; triphenylphosphine; lithium diisopropyl amide;
palladium on activated charcoal; platinum on activated charcoal;
In
tetrahydrofuran; methanol; diethyl ether; hexane; dichloromethane; water; dimethyl sulfoxide; ethyl acetate; N,N-dimethyl-formamide; acetonitrile; tert-butyl alcohol;
1.1: Metallation / 1.2: Alkylation / 2.1: Oxidation / 3.1: desilylation / 4.1: Stille coupling / 5.1: Chlorination / 6.1: Cyclization / 7.1: desilylation / 8.1: Oxidation / 9.1: Cyclization / 10.1: demethoxycarbonylation / 11.1: Peterson olefination / 12.1: Catalytic hydrogenation / 13.1: Thorpe-Ziegler annulation / 14.1: Hydrolysis / 15.1: Catalytic hydrogenation / 15.2: Oxidation / 16.1: Methylation / 17.1: Reduction;
DOI:10.1021/ja000728f