Hydrochloric Acid → Zidovudine

HRID 440428

反応式

HRID 440428 の反応式
Cl.[CH3:2][C:3]1[C:9](=[O:10])[NH:8][C:6](=[O:7])[N:5]([C@@H:11]2[O:15][C@H:14]([CH2:16][OH:17])[C@@H:13]([N:18]=[N+:19]=[N-:20])[CH2:12]2)[CH:4]=1.NC(N)=N>O>[CH3:2][C:3]1[C:9](=[O:10])[NH:8][C:6](=[O:7])[N:5]([C@@H:11]2[O:15][C@H:14]([CH2:16][OH:17])[C@@H:13]([N:18]=[N+:19]=[N-:20])[CH2:12]2)[CH:4]=1

参加物

4

反応物 2

HCID 313Hydrochloric Acid2 回HCID 15817654Zidovudine guanidine

生成物 1

HCID 35370Zidovudine収率 83.6%

試薬・触媒・溶媒 1

HCID 962Water溶媒

反応条件

温度
75 °C

実験手順

A mixture of water (90 mL) and 32% hydrochloric acid (31.4 g) was heated at 75° C. Zidovudine-guanidine complex (90 g) from Example 1 was added in portions to the aqueous solution and when the addition was completed the pH was 7.56. Thereafter, the pH was adjusted to 1.0 by further addition of 32% hydrochloric acid. The mixture was cooled and crystals formed spontaneously. After several hours the crystals were filtered to yield 61.64 g of crude zidovudine suitable for final purification. 50% caustic (22 g) was added to the mother liquor and a precipitate formed. After 30 minutes the precipitate was filtered to yield 7.99 g zidovudine-guanidine complex suitable for recycling (i.e. acidification).

後処理

  1. additionthe addition
  2. temperatureThe mixture was cooled
  3. customcrystals formed spontaneously
  4. filtrationAfter several hours the crystals were filtered

出典と根拠

ORDレコード
ord-002c043efee7446bbd90f4ece77e4284
出典データセット
uspto-grants-1996_05
特許番号
US05519129

関連ノート

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