Trifluoroacetic acid → HCID 67249920、化合物

HRID 240282

反応式

HRID 240282 の反応式
Br[C:2]1[CH:30]=[CH:29][C:28]([F:31])=[CH:27][C:3]=1[CH2:4][N:5]1[C:10](=[O:11])[C:9]([CH3:12])=[N:8][N:7]=[C:6]1[N:13]1[CH2:18][CH2:17][CH2:16][C@@H:15]([NH:19]C(=O)OC(C)(C)C)[CH2:14]1.C(O)(C(F)(F)F)=O.C([O-])(O)=O.[Na+]>ClCCl>[NH2:19][C@@H:15]1[CH2:16][CH2:17][CH2:18][N:13]([C:6]2[N:5]([CH2:4][C:3]3[CH:2]=[CH:30][CH:29]=[C:28]([F:31])[CH:27]=3)[C:10](=[O:11])[C:9]([CH3:12])=[N:8][N:7]=2)[CH2:14]1

参加物

5

反応物 3

HCID 6422Trifluoroacetic acidHCID 516892Sodium BicarbonateHCID 58328539(R)-tert-butyl 1-(4-(2-bromo-5-fluorobenzyl)-6-methyl-5-oxo-4,5-dihydro-1,2,4-triazin-3-yl)piperidin-3-ylcarbamate

生成物 1

HCID 67249920HCID 67249920、化合物

試薬・触媒・溶媒 1

HCID 6344Dichloromethane溶媒

実験手順

To a solution of (R)-tert-butyl 1-(4-(2-bromo-5-fluorobenzyl)-6-methyl-5-oxo-4,5-dihydro-1,2,4-triazin-3-yl)piperidin-3-ylcarbamate (18, 30 mg) in dichloromethane (1 mL) was added TFA (0.5 mL), and the mixture was stirred at RT for 3 h. The mixture was carefully neutralized with NaHCO3 (aq, saturated), and extracted with CH2Cl2 (10 mL×3). The combined extracts were dried over Na2SO4 and concentrated to give the crude product. This was purified by column chromatography on silica gel, and eluted with 92:6:2 dichloromethane-methanol-ammonia to provide (R)-3-(3-aminopiperidin-1-yl)-4-(3-fluorobenzyl)-6-methyl-1,2,4-triazin-5(4H)-one (19). MS: m/z, 396 (100%, M+1), 398 (100%).

後処理

  1. extractionextracted with CH2Cl2 (10 mL×3)
  2. dry with materialThe combined extracts were dried over Na2SO4
  3. concentrationconcentrated
  4. customto give the crude product
  5. customThis was purified by column chromatography on silica gel
  6. washeluted with 92:6:2 dichloromethane-methanol-ammonia

出典と根拠

ORDレコード
ord-005f7eeefaa94590b480d68baa0784dc
出典データセット
uspto-grants-2014_02
特許番号
US08648073B2

関連ノート

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