Multi-step reaction with 10 steps
1.1: imidazole / dimethylformamide / 6 h / 20 °C
2.1: BH3*THF / tetrahydrofuran / 24 h / 0 - 20 °C
2.2: aq. H2O2; NaOH / tetrahydrofuran / 0 - 20 °C
3.1: Jones reagent / acetone / 0.5 h / 0 °C
4.1: diethyl ether / 0.5 h / 0 °C
5.1: LDA / tetrahydrofuran / 1 h / -78 °C
6.1: 10-camphorsulfonic acid; H2O / methanol / 4 h / 20 °C
7.1: Et3N / CH2Cl2 / 1.5 h / -10 °C
8.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / CH2Cl2 / 0.5 h / -10 °C
9.1: 2,3-dichloro-5,6-dicyano-1,4-benzoquinone / aq. phosphate buffer; CH2Cl2 / 0 - 2 °C / pH 7.4
10.1: (COCl)2; DMSO; Et3N / CH2Cl2 / 2 h / -78 - 20 °C
With
1H-imidazole; jones reagent; borane-THF; oxalyl dichloride; (1S)-10-camphorsulfonic acid; water; dimethyl sulfoxide; 1,8-diazabicyclo[5.4.0]undec-7-ene; triethylamine; 2,3-dicyano-5,6-dichloro-p-benzoquinone; lithium diisopropyl amide;
In
tetrahydrofuran; methanol; phosphate buffer; diethyl ether; dichloromethane; N,N-dimethyl-formamide; acetone;
3.1: Jones oxidation / 10.1: Swern oxidation;
DOI:10.1002/anie.200290038