[EN] GRANZYME B DIRECTED IMAGING AND THERAPY<br/>[FR] IMAGERIE DU GRANZYME B ET THÉRAPIE DIRIGÉES CONTRE LE GRANZYME B
申请人:CYTOSITE BIOPHARMA INC
公开号:WO2019160916A1
公开(公告)日:2019-08-22
Provided herein are heterocyclic compounds useful for imaging Granzyme B. Methods of imaging Granzyme B, combination therapies, and kits comprising the Granzyme B imaging agents are also provided.
The use of penicillin acylase for selective N-terminal deprotection in peptide synthesis
作者:Herbert Waldmann
DOI:10.1016/s0040-4039(00)86668-x
日期:1988.1
Penicillin acylase from E. coli (EC 3.5.1.11) accepts a broad range of N-phenylacetyl-dipeptide esters as substrates. The enzyme hydrolyses the N-terminal protecting group selectively at room temp. and pH=8.1 without affecting the peptide- or the ester-bonds. Alternatively methyl-, benzyl-, tert-butyl and allyl esters can be cleaved chemically leaving the phenylacetamido moiety intact.
Synthesis and reactions of α-thioformyl dipeptides, possible biogenetic precursors of penicillin
作者:John Cheney、Clive J. Moores、James A. Raleigh、A. Ian Scott、Douglas W. Young
DOI:10.1039/p19740000986
日期:——
Thioformyl dipeptides (II) have been synthesised by various routes and the existence of these unstable compounds has been verified by trapping experiments. At room temperature the thioaldehydes polymerise readily and at lower temperatures the thioenol forms are stabilised. When thioenolisation is prevented by the presence of an α-methyl substituent as in (XX), polymerisation is the only observable