Acetic Acid → DL-Carnitine

HRID 27576

反応式

HRID 27576 の反応式
[CH:1]1[N:2]=[C:3]([NH2:44])[C:4]2[N:9]=[CH:8][N:7]([C@@H:10]3[O:14][C@H:13]([CH2:15][O:16][P:17]([O:20][P:21]([O:24][CH2:25][C@H:26]4[O:30][C@@H:29]([N:31]5[CH:36]=[C:35]([C:37]([NH2:39])=[O:38])[CH2:34][CH:33]=[CH:32]5)[C@H:28]([OH:40])[C@@H:27]4[OH:41])([OH:23])=[O:22])([OH:19])=[O:18])[C@@H:12]([OH:42])[C@H:11]3[OH:43])[C:5]=2[N:6]=1.[C:45]([OH:48])(=[O:47])[CH3:46].[CH2:49](O)C>>[OH:40][CH:28]([CH2:46][C:45](=[O:48])[O-:47])[CH2:29][N+:31]([CH3:49])([CH3:36])[CH3:32].[CH:1]1[N:2]=[C:3]([NH2:44])[C:4]2[N:9]=[CH:8][N:7]([C@@H:10]3[O:14][C@H:13]([CH2:15][O:16][P:17]([O:20][P:21]([O:24][CH2:25][C@H:26]4[O:30][C@@H:29]([N:31]5[CH:36]=[C:35]([C:37]([NH2:39])=[O:38])[CH2:34][CH:33]=[CH:32]5)[C@H:28]([OH:40])[C@@H:27]4[OH:41])([OH:23])=[O:22])([OH:19])=[O:18])[C@@H:12]([OH:42])[C@H:11]3[OH:43])[C:5]=2[N:6]=1

参加物

5

反応物 3

HCID 176Acetic AcidHCID 702EthanolHCID 439153Nadh

生成物 2

HCID 288DL-CarnitineHCID 439153Nadh

実験手順

Carnitine was synthesized as in example 2, except that the NADH regeneration system comprised, in addition to alcohol dehydrogenase, aldehyde dehydrogenase (E.C. 1.2.1.5) which oxidizes the aldehyde (formed by action of alcohol dehydrogenase on ethanol) to acetic acid. Two molecules of NADH were formed from one molecule of ethanol (instead of one in the preceeding example) and the reaction balance was strongly displaced in favour of NADH and acetic acid formation. It was thus no longer necessary to eliminate acetaldehyde as in the preceeding example. The conditions were thus those of example 2, except that 125 units of purified aldehyde dehydrogenase (Boehringer ref. 171.832) were added to the reaction medium and nitrogen bubbling was omitted. After 24 hours, 0.764 g of L-carnitine was formed with a yield of 77.5% with respect to dehydrocarnitine hydrochloride.

出典と根拠

ORDレコード
ord-49b8a2a428ac4d3c9d9320983dae0121
出典データセット
uspto-grants-1980_09
特許番号
US04221869

関連ノート

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