Direct versatile route to conformationally constrained glutamate analogues
作者:James Dyer、Mark G. Moloney、Steve Keeling
DOI:10.1039/a708429c
日期:——
Novel conformationally constrained glutamate analogues are readily available from (S)-pyroglutamic acid; using a bicyclic lactam template, diastereocontrolled and sequential modification of the pyrrolidine ring is possible, allowing a versatile access to several glutamate and kainoid analogues; variations in the C(2)H–C(3)H coupling constants were observed depending upon the nature of remote substituents on the heterocyclic ring, consistent with modification of the ring conformation.
Pyrrolidinones derived from (S )-pyroglutamic acid. Part 2. Conformationally constrained kainoid analogues
作者:James Dyer、Amanda King、Steve Keeling、Mark G. Moloney
DOI:10.1039/b002001j
日期:——
Novel conformationally constrained glutamate analogues are readily available from (S)-pyroglutamic acid using a bicyclic lactam as a synthetic template; diastereocontrolled modification of the pyrrolidine ring using a sequential conjugate addition–substitution strategy permits access to several kainoid analogues in a versatile strategy. The pyrrolidinone ring conformation appears to be controllable by the nature of remote substituents on the heterocyclic ring.