Thionyl Chloride → (S)-2-(Chloromethyl)-6,8-dihydrospiro[cyclopenta[g]quinoline-7,3'-pyrrolo[2,3-b]pyridin]-2'(1'H)-one
反応式
O[CH2:2][C:3]1[CH:12]=[CH:11][C:10]2[C:5](=[CH:6][C:7]3[CH2:24][C@:14]4([C:22]5[C:17](=[N:18][CH:19]=[CH:20][CH:21]=5)[NH:16][C:15]4=[O:23])[CH2:13][C:8]=3[CH:9]=2)[N:4]=1.S(Cl)([Cl:27])=O>ClCl>[Cl:27][CH2:2][C:3]1[CH:12]=[CH:11][C:10]2[C:5](=[CH:6][C:7]3[CH2:24][C@:14]4([C:22]5[C:17](=[N:18][CH:19]=[CH:20][CH:21]=5)[NH:16][C:15]4=[O:23])[CH2:13][C:8]=3[CH:9]=2)[N:4]=1参加物
4
実験手順
To a stirred solution of (S)-2-(hydroxymethyl)-6,8-dihydrospiro[cyclopenta[g]quinoline-7,3′-pyrrolo[2,3-b]pyridin]-2′(1′H)-one from Step A (203 mg, 0.64 mmol) in CH2 Cl2 (20 mL) was added thionyl chloride (761 mg, 6.40 mmol) and the resulting mixture was stirred at ambient temperature for 1 h, then concentrated in vacuo. The residue was partitioned between saturated aqueous NaHCO3 (20 mL) and CH2 Cl2 (30 mL). The aqueous layer was extracted further with CH2 Cl2 (2×30 mL). The combined organic extracts were dried over Na2 SO4, filtered, and concentrated in vacuo to give the title compound in sufficient purity for use in the next step. MS: m/z=336 (M+1).