Multi-step reaction with 10 steps
1.1: LDA / tetrahydrofuran / 1 h / -78 °C
1.2: tetrahydrofuran / -78 - 20 °C
2.1: DBU / benzene / 4 h / Heating
3.1: 9-BBN / tetrahydrofuran / 12 h / 0 - 20 °C
3.2: aq. H2O2; AcONa / tetrahydrofuran / 0.33 h / 0 °C
4.1: CBr4; PPh3; imidazole / CH2Cl2 / 3.33 h / 0 - 20 °C
5.1: H2 / Pd/C / methanol / 3 h
6.1: NMM; TBTU / dimethylformamide / 2 h / 20 °C
7.1: Cs2CO3 / dimethylformamide; dimethylsulfoxide / 0.5 h / 80 °C
8.1: TFA / 1 h / 20 °C
9.1: NMM; HATU / dimethylformamide / 20 - 60 °C
10.1: aq. LiOH / tetrahydrofuran / 2 h / 20 °C
With
4-methyl-morpholine; 1H-imidazole; lithium hydroxide; 9-borabicyclo[3.3.1]nonane dimer; carbon tetrabromide; hydrogen; caesium carbonate; O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate; 1,8-diazabicyclo[5.4.0]undec-7-ene; triphenylphosphine; trifluoroacetic acid; N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate; lithium diisopropyl amide;
palladium on activated charcoal;
In
tetrahydrofuran; methanol; dichloromethane; dimethyl sulfoxide; N,N-dimethyl-formamide; benzene;
DOI:10.1021/jm010127e