Multi-step reaction with 14 steps
1.1: 100 percent / NaH / dimethylformamide
2.1: 85 percent / HgCl2; HgO / acetonitrile; H2O
3.1: 68 percent / NaHMDS / diethyl ether / -78 °C
4.1: 96 percent / TFA / tetrahydrofuran; H2O / 40 °C
5.1: 93 percent / pyridine
6.1: 98 percent / imidazole / dimethylformamide / 40 °C
7.1: 93 percent / DIBAL / CH2Cl2 / -50 - -10 °C
8.1: 96 percent / Dess-Martin periodinane / CH2Cl2
9.1: 93 percent / DBU; LiCl / acetonitrile
10.1: (R)-CBS reagent; BH3*THF / tetrahydrofuran
11.1: 100 percent / LiOH / methanol
12.1: 2,4,6-trichlorobenzoyl chloride; NEt3 / tetrahydrofuran
12.2: 68 percent / DMAP / toluene / 12 h / Heating
13.1: 99 percent / DDQ; NaHCO3 / CH2Cl2; H2O
14.1: 86 percent / imidazole / dimethylformamide
With
1H-imidazole; lithium hydroxide; borane-THF; (R)-CBS reagent; 2,4,6-trichlorobenzoyl chloride; sodium hexamethyldisilazane; sodium hydride; diisobutylaluminium hydride; sodium hydrogencarbonate; Dess-Martin periodane; 1,8-diazabicyclo[5.4.0]undec-7-ene; triethylamine; trifluoroacetic acid; 2,3-dicyano-5,6-dichloro-p-benzoquinone; lithium chloride; mercury dichloride; mercury(II) oxide;
In
tetrahydrofuran; pyridine; methanol; diethyl ether; dichloromethane; water; N,N-dimethyl-formamide; acetonitrile;
3.1: Wittig reaction / 9.1: Horner-Wadsworth-Emmons reaction;
DOI:10.1016/S0040-4039(00)01285-5