Back to results
US 8,563,765 B2Granted
Diamino acid derivative starting material, manufacturing method thereof, and diamino acid derivative manufacturing method
AssigneeJapan Science and Technology Agency
InventorsShu Kobayashi, Yasuhiro Yamashita, Kazutaka Seki
Life of this patent
Estimating the term…
Abstract
Provided is an efficient technology for synthesizing diamino acids (diamino acid derivatives). Disclosed is a manufacturing method for diamino acid derivatives wherein the fluorenyl groups of the diamino acid derivative starting materials represented by General Formula [II] or [IV] are removed.
Claims7
A method of manufacturing a compound of formula [IV]:
- wherein
- R1 is a substituted hydrocarbon group or an unsubstituted hydrocarbon group,
- R3 is a substituted hydrocarbon group, a substituted heterocyclic group, an unsubstituted hydrocarbon group, or an unsubstituted heterocyclic group,
- R4 is an electron-withdrawing group, and
- the fluorenyl group is a ring-substituted fluorenyl group or a ring-unsubstituted fluorenyl group,
- the method comprising reacting a compound of formula [III]:
- with a compound of formula [V]:
- wherein
- R3 is a substituted hydrocarbon group, a substituted heterocyclic group, an unsubstituted hydrocarbon group, or an unsubstituted heterocyclic group, and
- R4 is an electron-withdrawing group.
7 more elements
Dependencies are inferred from the claim text.