The present invention is directed to synthesis of homo-β-amino acids of an optical purity sufficient to exhibit optical activity wherein Curtius rearrangement of 3-mono-substituted succinate acid half ester of an optical purity sufficient to exhibit optical activity is affected and the incipient isocyanate is trapped with a primary or secondary alcohol. The resulting carbamate-protected homo-β-amino esters are then saponified to produce the corresponding carbamate-protected homo-β-amino acids which are deprotected to yield homo-β-amino acids of an optical purity sufficient to exhibit optical activity.
本发明旨在合成具有足够光学活性以表现光学活性的同型β-
氨基酸,其中影响了具有足够光学活性的3-单取代
琥珀酸半酯的Curtius重排,并且初级
异氰酸酯被一级或二级醇捕获。然后,产生的羰基保护的同型β-
氨基酸酯被皂化以产生相应的羰基保护的同型β-
氨基酸,然后去保护以产生具有足够光学活性以表现光学活性的同型β-
氨基酸。