Tripeptide Probes for Tripeptidyl Protease I Production via Gene Transfer
摘要:
Tripeptides derived from 5-chloroanthraquinone hydrazide and anthraquinone hydrazide have been prepared as potential reagents to probe cellular expression of tripeptidyl protease I (TPP-I). Attempted chemical synthesis of Gly-L-Pro-L-Ala-chloroanthraquinone hydrazide, a compound that had been reported to serve as a substrate for this enzyme, was complicated by formation of a pyrazoloquinone. In contrast, formation of pyrazoloquinones was not observed during coupling reactions with anthraquinone hydrazide, and several tripeptide derivatives of this compound were prepared. The most attractive probe for TPP-I activity in tests with mouse kidney tissue sections proved to be Gly-L-Pro-L-Ser anthraquinone hydrazide.
Tripeptide Probes for Tripeptidyl Protease I Production via Gene Transfer
摘要:
Tripeptides derived from 5-chloroanthraquinone hydrazide and anthraquinone hydrazide have been prepared as potential reagents to probe cellular expression of tripeptidyl protease I (TPP-I). Attempted chemical synthesis of Gly-L-Pro-L-Ala-chloroanthraquinone hydrazide, a compound that had been reported to serve as a substrate for this enzyme, was complicated by formation of a pyrazoloquinone. In contrast, formation of pyrazoloquinones was not observed during coupling reactions with anthraquinone hydrazide, and several tripeptide derivatives of this compound were prepared. The most attractive probe for TPP-I activity in tests with mouse kidney tissue sections proved to be Gly-L-Pro-L-Ser anthraquinone hydrazide.
Tripeptide Probes for Tripeptidyl Protease I Production via Gene Transfer
作者:MeeKyoung Kim、Qinwen Mao、Beverly L. Davidson、David F. Wiemer
DOI:10.1021/jm020525x
日期:2003.4.1
Tripeptides derived from 5-chloroanthraquinone hydrazide and anthraquinone hydrazide have been prepared as potential reagents to probe cellular expression of tripeptidyl protease I (TPP-I). Attempted chemical synthesis of Gly-L-Pro-L-Ala-chloroanthraquinone hydrazide, a compound that had been reported to serve as a substrate for this enzyme, was complicated by formation of a pyrazoloquinone. In contrast, formation of pyrazoloquinones was not observed during coupling reactions with anthraquinone hydrazide, and several tripeptide derivatives of this compound were prepared. The most attractive probe for TPP-I activity in tests with mouse kidney tissue sections proved to be Gly-L-Pro-L-Ser anthraquinone hydrazide.
EDC-mediated condensations of 1-chloro-5-hydrazino-9,10-anthracenedione, 1-hydrazino-9,10-anthracenedione, and the corresponding anthrapyrazoles
作者:MeeKyoung Kim、David F Wiemer
DOI:10.1016/j.tetlet.2004.04.041
日期:2004.6
The EDC-mediated condensation of 1-chloro-5-hydrazino-9,10-anthracenedione afforded an N-1 acyl anthrapyrazole instead of the expected hydrazide. The regiochemistry of the N-acyl substituent was assigned on the basis of an extensive set of NMR experiments, and identification of this isomer Suggests a reaction sequence based on initial acylation and Subsequent cyclization. In contrast, the parallel reaction of 1-hydrazino-9,10-anthracenedione proceeded to afford the expected hydrazide. (C) 2004 Elsevier Ltd. All rights reserved.