Hydrochloric Acid → HCID 53395219、化合物

HRID 648832ノート

反応式

HRID 648832 の反応式
[C:1]([O:5][C:6]([CH2:8][O:9][N:10]=[C:11]([C:15]1[N:16]=[C:17]([NH:20]C=O)[S:18][CH:19]=1)[C:12]([OH:14])=[O:13])=[O:7])([CH3:4])([CH3:3])[CH3:2].Cl.O.[OH-].[Na+]>CO>[C:1]([O:5][C:6]([CH2:8][O:9][N:10]=[C:11]([C:15]1[N:16]=[C:17]([NH2:20])[S:18][CH:19]=1)[C:12]([OH:14])=[O:13])=[O:7])([CH3:4])([CH3:2])[CH3:3]

参加物

6

反応物 4

HCID 313Hydrochloric AcidHCID 962WaterHCID 14798Sodium HydroxideHCID 543909512-t-Butoxycarbonylmethoxyimino-2-(2-formamidothiazol-4-yl)acetic acid

生成物 1

HCID 53395219HCID 53395219、化合物収率 92.5%

試薬・触媒・溶媒 1

HCID 887Methanol溶媒

実験手順

A mixture of 2-t-butoxycarbonylmethoxyimino-2-(2-formamidothiazol-4-yl)acetic acid (syn isomer) (15.0 g) and conc. hydrochloric acid (9.5 g) in methanol (75 ml) was stirred at ambient temperature for 2.5 hours. Water (100 ml) was added to the reaction mixture and the solution was adjusted to pH 3.0 with 10% aqueous solution of sodium hydroxide under stirring. The precipitates were collected by filtration, washed with water and diisopropyl ether and dried to give 2-t-butoxycarbonylmethoxyimino-2-(2-aminothiazol-4-yl) acetic acid (syn isomer) (12.7 g).

後処理

  1. stirringunder stirring
  2. filtrationThe precipitates were collected by filtration
  3. washwashed with water and diisopropyl ether
  4. customdried

出典と根拠

ORDレコード
ord-3970b10d988b4d549d49a76946487646
出典データセット
uspto-grants-1988_04
特許番号
US04736039

反応ノート

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