[CH2:1]=[C:2]1[CH2:11][CH2:10][C:5]2([O:9]CCO2)[CH2:4][CH2:3]1.[Cl:12][C:13]1[CH:14]=[C:15]([C:19]#[C:20][C:21]2[CH2:25]C3(CCC(=O)CC3)O[N:22]=2)[CH:16]=[CH:17][CH:18]=1>>[Cl:12][C:13]1[CH:14]=[C:15]([C:19]#[C:20][C:21]2[CH2:25][C:5]3([CH2:4][CH2:3][C:2](=[CH2:1])[CH2:11][CH2:10]3)[O:9][N:22]=2)[CH:16]=[CH:17][CH:18]=1The title compound was synthesized using the same methodology described for Compound 31a, but starting from the compound of Example 32 instead of 1,4-dioxaspiro[4.5]decan-8-one. After the usual work-up procedure, the residue was purified by means of automated flash chromatography (Horizon®TM-Biotage; gradient Petroleum Ether-Acetone EtOAc from 95:5 to 9:1) to give the title compound as a grey solid. Yield: 67.3%
Wird geladen…