Sodium Hydroxide → (6R,7R)-7-((4-Carboxy-1-oxobutyl)amino)-3-(hydroxymethyl)-8-oxo-5-thia-1-azabicyclo(4.2.0)oct-2-ene-2-carboxylic acid

HRID 1588328

반응식

HRID 1588328 반응식
CC([O:4][CH2:5][C:6]1[CH2:23][S:22][C@@H:9]2[C@H:10]([NH:13][C:14]([CH2:16][CH2:17][CH2:18][C:19]([OH:21])=[O:20])=[O:15])[C:11](=[O:12])[N:8]2[C:7]=1[C:24]([OH:26])=[O:25])=O.[OH-].[Na+]>O>[CH2:23]1[S:22][C@@H:9]2[C@H:10]([NH:13][C:14]([CH2:16][CH2:17][CH2:18][C:19]([OH:21])=[O:20])=[O:15])[C:11](=[O:12])[N:8]2[C:7]([C:24]([OH:26])=[O:25])=[C:6]1[CH2:5][OH:4]

참가 물질

4

반응물 2

HCID 14798Sodium Hydroxide2회HCID 446570Glutaryl-7-aminocephalosporanic acid2회

생성물 1

HCID 6453255(6R,7R)-7-((4-Carboxy-1-oxobutyl)amino)-3-(hydroxymethyl)-8-oxo-5-thia-1-azabicyclo(4.2.0)oct-2-ene-2-carboxylic acid

시약·촉매·용매 1

HCID 962Water용매

실험 절차

Glutaryl 7ACA (3.0 g) is slurried in 45 ml water and the pH is adjusted to 6.0 with 20% sodium hydroxide to dissolve the glutaryl 7ACA. Yeast esterase (0.3 g) is added and the solution is stirred at 22°-25° C. for 4 hours while maintaining the pH at 5.9-6.1 with 20% sodium hydroxide. The yield by HPLC to desacetyl glutaryl 7ACA is 98% with the ratio of desacetyl glutaryl 7ACA to glutaryl 7ACA >99%. The resulting solution is filtered with filter aid to remove the yeast and aliquots are used for subsequent chemical conversions of desacetyl glutaryl 7ACA to glutaryl 7ACA. The solution may be stored frozen.

후처리

  1. additionYeast esterase (0.3 g) is added

출처 및 근거

ORD 기록
ord-55618526b7794c16bf0de53644fe10ed
출처 데이터셋
uspto-grants-1993_06
특허 번호
US05221739

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