Methanol → 6-(3-Acetylamino-1-pyrrolidinyl)-2-(2,4-difluorophenylamino)-5-fluoronicotinic acid

HRID 232458ノート

反応式

HRID 232458 の反応式
CO.[C:3]([NH:6][CH:7]1[CH2:11][CH2:10][N:9]([C:12]2[C:21]([F:22])=[CH:20][C:15]([C:16]([O:18]C)=[O:17])=[C:14]([NH:23][C:24]3[CH:29]=[CH:28][C:27]([F:30])=[CH:26][C:25]=3[F:31])[N:13]=2)[CH2:8]1)(=[O:5])[CH3:4].[OH-].[Na+]>O.C(OCC)(=O)C>[C:3]([NH:6][CH:7]1[CH2:11][CH2:10][N:9]([C:12]2[C:21]([F:22])=[CH:20][C:15]([C:16]([OH:18])=[O:17])=[C:14]([NH:23][C:24]3[CH:29]=[CH:28][C:27]([F:30])=[CH:26][C:25]=3[F:31])[N:13]=2)[CH2:8]1)(=[O:5])[CH3:4]

参加物

6

反応物 3

HCID 887MethanolHCID 14798Sodium HydroxideHCID 13821764Methyl 6-(3-acetylamino-1-pyrrolidinyl)-2-(2,4-difluorophenylamino)-5-fluoronicotinate

生成物 1

HCID 138217726-(3-Acetylamino-1-pyrrolidinyl)-2-(2,4-difluorophenylamino)-5-fluoronicotinic acid収率 93%

試薬・触媒・溶媒 2

HCID 962Water溶媒2 回HCID 8857Ethyl Acetate溶媒

実験手順

In a mixture of 30 ml of tetrahydrofruran, 10 ml of methanol and 4 ml of water was suspended 980 mg of methyl 6-(3-acetylamino-1-pyrrolidinyl)-2-(2,4-difluorophenylamino)-5-fluoronicotinate, and 5.3 ml of 1N aqueous sodium hydroxide solution was added thereto, after which the resulting mixture was subjected to reaction at 65° C. for 3 hours. Subsequently, the reaction mixture was added to a mixture of 50 ml of ethyl acetate and 50 ml of water, and the aqueous layer was separated, after which the pH thereof was adjusted to 2.0 with 1N hydrochloric aicd. The crystals thus deposited were collected by filtration and washed successively with 2 ml of water and 2 ml of ethanol to obtain 880 mg (yield 93.0%) of 6-(3-acetylamino-1-pyrrolidinyl)-2-(2,4-difluorophenylamino)-5-fluoronicotinic acid having a melting point of 232°-234° C.

後処理

  1. additionwas added
  2. customafter which the resulting mixture was subjected to reaction at 65° C. for 3 hours
  3. customthe aqueous layer was separated
  4. filtrationThe crystals thus deposited were collected by filtration
  5. washwashed successively with 2 ml of water and 2 ml of ethanol

出典と根拠

ORDレコード
ord-35201cdc06fc4903b1e21af25c883aab
出典データセット
uspto-grants-1989_07
特許番号
US04851535

反応ノート

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