C(OC(=O)[NH:7][C@@H:8](/[CH:16]=[CH:17]/[C:18]#[N:19])[CH2:9][C:10]1[CH:15]=[CH:14][CH:13]=[CH:12][CH:11]=1)(C)(C)C>Cl.CO>[NH2:7][C@H:8]([CH2:9][C:10]1[CH:15]=[CH:14][CH:13]=[CH:12][CH:11]=1)/[CH:16]=[CH:17]/[C:18]#[N:19]Compound 31e (4.0 g, 14.7 mmol) was treated with 2M HCl/MeOH (300 mL). After the reaction was over, the solvents were removed under reduced pressure to give a white solid. The product was directly used in the next reaction step without further purification.
Wird geladen…