Multi-step reaction with 19 steps
1.1: 100 percent / H2 / Pd/C / ethyl acetate
2.1: KHMDS / tetrahydrofuran
3.1: 68 percent / KHMDS / diethyl ether; toluene / 20 °C
4.1: aq. K2OsO4; NMO / acetone
5.1: aq. NaIO4 / tetrahydrofuran
6.1: 89 percent / TBAF / tetrahydrofuran
7.1: 87 percent / Et3N / CH2Cl2
8.1: 98 percent / H2 / Pd/C / ethyl acetate
9.1: 87 percent / NaN3 / dimethylformamide
10.1: 92 percent / PTSA / benzene
11.1: TFA
12.1: K2CO3 / acetonitrile
13.1: H2 / Pd/C / methanol
14.1: aq. LiOH
15.1: DPPA; Et3N / dimethylformamide
16.1: 73 percent / NaH / tetrahydrofuran
17.1: LDA / tetrahydrofuran / -78 °C
17.2: MsCl; Et3N / CH2Cl2
17.3: t-BuOK / tetrahydrofuran / 0 °C
18.1: AlH3 / diethyl ether
19.1: aq. HCl / acetone
With
aluminium hydride; hydrogenchloride; lithium hydroxide; potassium osmate(VI); sodium periodate; sodium azide; N-methyl-2-indolinone; diphenyl-phosphinic acid; tetrabutyl ammonium fluoride; hydrogen; potassium hexamethylsilazane; sodium hydride; potassium carbonate; toluene-4-sulfonic acid; triethylamine; trifluoroacetic acid; lithium diisopropyl amide;
palladium on activated charcoal;
In
tetrahydrofuran; methanol; diethyl ether; dichloromethane; ethyl acetate; N,N-dimethyl-formamide; acetone; toluene; acetonitrile; benzene;
DOI:10.1055/s-2004-829092