Trifluoroacetic acid → (R)-1-chloro-4-(2-methylpiperazin-1-yl)phthalazine

反応式

[Cl:1][C:2]1[C:11]2[C:6](=[CH:7][CH:8]=[CH:9][CH:10]=2)[C:5]([N:12]2[CH2:17][CH2:16][N:15](C(OC(C)(C)C)=O)[CH2:14][C@H:13]2[CH3:25])=[N:4][N:3]=1.FC(F)(F)C(O)=O.C([O-])(O)=O.[Na+]>ClCCl>[Cl:1][C:2]1[C:11]2[C:6](=[CH:7][CH:8]=[CH:9][CH:10]=2)[C:5]([N:12]2[CH2:17][CH2:16][NH:15][CH2:14][C@H:13]2[CH3:25])=[N:4][N:3]=1

参加物

実験手順

(R)-tert-butyl 4-(4-chlorophthalazin-1-yl)-3-methylpiperazine-1-carboxylate (1.20 g, 3.31 mmol) was dissolved in dry dichloromethane (40 mL). Trifluoroacetic acid (8 mL) was added dropwise and allowed to stir at RT for 2 hours. The reaction was added to saturated NaHCO3 (200 mL) and the aqueous phase was extracted with 3×100 mL of dichloromethane. The combined organics were dried (MgSO4) and evaporated to give a pale yellow solid. MS (M+H)+=263.1.