Levodopa → (E)-6-amino-2-oxohex-3-enoic acid

HRID 513990

Reaktionsgleichung

Reaktionsgleichung von HRID 513990
[C:1]([C:9]([O-:11])=[O:10])(=[O:8])[C:2]1C=C[CH:5]=[CH:4][CH:3]=1.C([O-])(=O)C1C=C(O)C(O)=C(O)C=1.O=C([C@H](CC1C=C(O)C(O)=CC=1)[NH2:28])O.C1(CC(=O)C([O-])=O)C=CC=CC=1.OC1C=C(C([O-])=O)C(=CC=1O)C([O-])=O.N1C=C(C([O-])=O)C(=O)NC1=O.C1C=C[C@](O)(C(O)=O)[C@@H](O)C=1>O>[NH2:28][CH2:5][CH2:4]/[CH:3]=[CH:2]/[C:1](=[O:8])[C:9]([OH:11])=[O:10]

Komponenten

9

Versuchsvorschrift

There are no enzymes known in the art that catalyze the substrate L-2,3-dihydropicolinate to produce 5,6-dihydropyridine-2-carboxylate. However, there are a few decarboxylases that are able to decarboxylate ring mounted carboxylic acids. One skilled in the art would appreciate that it is likely that these enzymes may have, or could be engineered to have, activity towards L-2,3-dihydropicolinate. Examples of such decarboxylases include, but are not limited to, benzoylformate decarboxylase (EC 4.1.1.7), 3-hydroxy-2-methyl pyridine-4,5-dicarboxylate decarboxylase (EC 4.1.1.51), pyrrole-2-carboxylase (EC 4.1.1.-), gallate decarboxylase (4.1.1.59), Dopa decarboxylase (EC 4.1.1.28), Phenylpyruvate decarboxylase (EC 4.1.1.43), 4,5-dihydroxyphthalate decarboxylase (EC 4.1.1.55), 5-dihydroxybenzoate decarboxylase (EC 4.1.1.62), Uracil-5-carboxylate decarboxylase (EC 4.1.1.66), and Cis-1,2-dihydroxycyclohexa-3,5-diene-1-carboxylate dehydrogenase (EC 1.3.1.25). In a subsequent step, the 5,6-dihydropyridine-2-carboxylic acid ring is opened in the presence of water to produce (E)-6-amino-2-oxohex-3-enoic acid. This reaction is similar to the hydration of 2,3,4,5-terahydropyridine-2-carboxylic acid (in the lysine degradation pathway) and is likely to be spontaneous in the presence of water.

Quellen und Nachweise

ORD-Eintrag
ord-81542f7a7bf047c589464140bb02168b
Quelldatensatz
uspto-grants-2015_08
Patentnummer
US09102961B2

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