Hydrochloric Acid → 2-((9S)-7-(4-chlorophenyl)-4,5,13-trimethyl-3-thia-1,8,11,12-tetraazatricyclo(8.3.0.0,2,6)trideca-2(6),4,7,10,12-pentaen-9-yl)acetic acid
反応式
[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2=[N:9][C@@H:10]([CH2:24][C:25]([O:27]C)=[O:26])[C:11]3[N:12]([C:20]([CH3:23])=[N:21][N:22]=3)[C:13]3[S:17][C:16]([CH3:18])=[C:15]([CH3:19])[C:14]2=3)=[CH:4][CH:3]=1.O.[OH-].[Li+].Cl>CO>[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([C:8]2=[N:9][C@@H:10]([CH2:24][C:25]([OH:27])=[O:26])[C:11]3[N:12]([C:20]([CH3:23])=[N:21][N:22]=3)[C:13]3[S:17][C:16]([CH3:18])=[C:15]([CH3:19])[C:14]2=3)=[CH:6][CH:7]=1参加物
実験手順
Methyl 2-((6S,Z)-4-(4-chlorophenyl)-2,3,9-trimethyl-6H-thieno[3,2-f][1,2,4]triazolo[4,3-a][1,4]diazepin-6-yl)acetate (see e.g., WO 2006129623)(100.95 mg, 0.243 mmol was suspended in 1 mL methanol to which was added a freshly prepared solution of lithium hydroxide monohydrate (0.973 mL, 0.5 M, 0.487 mmol) and shaken at ambient temperature for 3 hours. The methanol was evaporated and the pH adjusted with aqueous hydrochloric acid (1 M, 0.5 mL, 0.5 mmol) and extracted four times with ethyl acetate. The combined ethyl acetate layers were dried over magnesium sulfate and evaporated to afford 2-((6S,Z)-4-(4-chlorophenyl)-2,3,9-trimethyl-6H-thieno[3,2-f][1,2,4]triazolo[4,3-a][1,4]diazepin-6-yl)acetic acid (85.3 mg, 87.0%); ESI-MS m/z=401.1 [(M+H)+] which was used directly in the next reaction.
後処理
- customThe methanol was evaporated
- extractionextracted four times with ethyl acetate
- dry with materialThe combined ethyl acetate layers were dried over magnesium sulfate
- customevaporated
出典と根拠
- ORDレコード
- ord-0d2b30a940eb43fca802612b19c6cb7b
- 出典データセット
- uspto-grants-2015_03
- 特許番号
- US08980879B2
反応ノート
読み込み中…