Multi-step reaction with 25 steps
1.1: DIBAL-H / CH2Cl2 / 0.33 h / -78 °C
2.1: D-(-)-DIPT; Ti(O-iPr)4; TBHP / CH2Cl2 / 3 h / -20 °C
2.2: 92 percent / Red-Al / tetrahydrofuran / 3 h / -10 °C
3.1: Et3N; DMAP / dimethylformamide / 5 h / 0 - 20 °C
4.1: Et3N; DMAP / CH2Cl2 / 0.5 h / 0 - 20 °C
5.1: CSA / methanol / 48 h / 20 °C
6.1: imidazole; DMAP / dimethylformamide / 24 h / 0 - 20 °C
7.1: TBAF / tetrahydrofuran / 3 h / 0 °C
8.1: (COCl)2; DMSO; Et3N / CH2Cl2 / -78 - 0 °C
9.1: DIBAL-H
10.1: (+)-DIPT
11.1: CCl4; Ph3P; NaHCO3
12.1: LDA
13.1: Red-Al / diethyl ether / 2 h / 0 - 20 °C
14.1: Et2Zn / CH2Cl2 / 4 h / -20 - 0 °C
15.1: Et3N; DMAP / CH2Cl2 / 1 h / 0 - 20 °C
16.1: H2 / Pd/C / hexane / 1 h / 20 °C
17.1: SO3-pyridine; Et3N / CH2Cl2 / 1 h / 0 - 20 °C
18.1: diethyl ether / 1 h / 0 - 20 °C
19.1: BH3*Me2S / tetrahydrofuran / 0.5 h / 0 °C
19.2: H2O2; NaOH / tetrahydrofuran; H2O
20.1: SO3-pyridine; Et3N / CH2Cl2 / 1 h / 0 - 20 °C
21.1: NaClO2; NaH2PO4*2H2O; 2-methyl-2-butene / 2-methyl-propan-2-ol / 1 h / 20 °C
22.1: diethyl ether / 0.17 h / 0 °C
23.1: CSA / methanol; CH2Cl2 / 0.17 h / 0 °C
24.1: K2CO3 / 1 h / 20 °C
With
1H-imidazole; titanium(IV) isopropylate; tert.-butylhydroperoxide; tetrachloromethane; dmap; sodium chlorite; sodium dihydrogenphosphate; 2-methyl-but-2-ene; oxalyl dichloride; pyridine-SO3 complex; L-(+)-diisopropyl tartrate; dimethylsulfide borane complex; camphor-10-sulfonic acid; tetrabutyl ammonium fluoride; hydrogen; diethylzinc; diisobutylaluminium hydride; sodium hydrogencarbonate; potassium carbonate; D-(-)-diisopropyl tartrate; dimethyl sulfoxide; triethylamine; triphenylphosphine; sodium bis(2-methoxyethoxy)aluminium dihydride; lithium diisopropyl amide;
palladium on activated charcoal;
In
tetrahydrofuran; methanol; diethyl ether; hexane; dichloromethane; N,N-dimethyl-formamide; tert-butyl alcohol;
2.1: Sharpless epoxidation / 8.1: Swern oxidation / 11.1: Sharpless epoxidation;
DOI:10.1016/j.tetlet.2006.01.130