Multi-step reaction with 5 steps
1.1: 86 percent / aq. Na2CO3 / dioxane / 16 h / 20 °C
2.1: LHMDS; 1,3-dimethyl-3,4,5,6-tetrahydro-2(1H)-pyrimidinone / tetrahydrofuran / 2 h / -78 °C
2.2: 79 percent / tetrahydrofuran / -78 - 20 °C
3.1: 69 percent / TFA / CH2Cl2 / 24 h / 20 °C
4.1: 95 percent / Pd(PPh3)4; morpholine / tetrahydrofuran / 0.5 h / 20 °C
5.1: HBTU; DIPEA / dimethylformamide / 0.17 h / 20 °C
5.2: 80 percent / DIPEA / dimethylformamide / 8 h
With
morpholine; 1,3-dimethyl-3,4,5,6-tetrahydro-2(1H)-pyrimidinone; tetrakis(triphenylphosphine) palladium(0); sodium carbonate; O-(1H-benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate; N-ethyl-N,N-diisopropylamine; trifluoroacetic acid; lithium hexamethyldisilazane;
In
tetrahydrofuran; 1,4-dioxane; dichloromethane; N,N-dimethyl-formamide;
DOI:10.1021/jm010825z