L-Pyroglutamic Acid → 5-oxo-L-prolyl-L-glutamine
Reaktionsgleichung
[NH:1]1[C:5](=[O:6])[CH2:4][CH2:3][C@H:2]1[C:7]([OH:9])=O.C(Cl)(=O)C(C)(C)C.C([O:21][C:22](=[O:30])[C@H:23]([CH2:25][CH2:26][C:27](=[O:29])[NH2:28])[NH2:24])(C)(C)C>>[NH:1]1[C:5](=[O:6])[CH2:4][CH2:3][C@H:2]1[C:7]([NH:24][C@H:23]([C:22]([OH:30])=[O:21])[CH2:25][CH2:26][C:27](=[O:29])[NH2:28])=[O:9]Komponenten
4
Versuchsvorschrift
A mixed anhydride from L-pyroglutamic acid 9 and pivaloyl chloride was coupled with L-glutamine t-butyl ester 10 followed by acidic workup to yield L-pyroglutamyl-L-glutamine 7 (Equation 2). This dipeptide was purified by reversed phase HPLC using a gradient system of acetonitrile/H2O.
Quellen und Nachweise
- ORD-Eintrag
- ord-59ef154b662045288986d2e4bfa7b4f4
- Quelldatensatz
- uspto-grants-2005_01