Synthesis of a conformationally constrained threonine–valine dipeptide mimetic: design of a potential inhibitor of plasminogen activator inhibitor-1
摘要:
The stereoselective synthesis of a conformationally restricted threonine-valine dipeptide mimetic and its incorporation into a tetrapeptide is described. (C) 2001 Elsevier Science Ltd. Ali rights reserved.
Synthesis of (R)-α-benzylmethionine: a novel rearrangement during alkylation of the Seebach (R)-methionine oxazolidinone
作者:Panayiotis A. Procopiou、Mahmood Ahmed、Séverine Jeulin、Rossana Perciaccante
DOI:10.1039/b303471m
日期:——
Alkylation of the enolate of the Seebach (R)-methionine oxazolidinone with benzyl bromide gave the expected benzylated product in low yield. The major product was a novel amine arising from oxazolidinone cleavage, decarboxylation, alkylation and finally hydrolysis. The rearrangement could be suppressed by using a more reactive electrophile or by using the N-Cbz instead of the N-benzoyl protecting group
Design and synthesis of diaminopyrrolidinone inhibitors of human osteoclast cathepsin K
作者:Kevin J. Duffy、Lance H. Ridgers、Renee L. DesJarlais、Thaddeus A. Tomaszek、Mary J. Bossard、Scott K. Thompson、Richard M. Keenan、Daniel F. Veber
DOI:10.1016/s0960-894x(99)00322-4
日期:1999.7
The structure-based design and synthesis of lactam-constrained azapeptide inhibitors of human cathepsin K are described. Enhanced stability to proteolytic cleavage over acyclic analogues is discussed. (C) 1999 Elsevier Science Ltd. All rights reserved.