Novel quinazolinamide derivatives of the formula (I), in which R1-R43 and X have the meanings indicated in claim
1
, are HSP90 inhibitors and can be used for the preparation of a medicament for the treatment of diseases in which the inhibition, regulation and/or modulation of HSP90 plays a role.
Boronic acid-linked fluorescent and colorimetric probes for copper ions
作者:K. M. K. Swamy、Sung-Kyun Ko、Soo Kyung Kwon、Ha Na Lee、Chun Mao、Joung-Min Kim、Keun-Hyeung Lee、Jinheung Kim、Injae Shin、Juyoung Yoon
DOI:10.1039/b814167c
日期:——
The first examples of boronic acid-linked fluorescent and colorimetric chemosensors for copper ions are reported; the monoboronic acid-conjugated rhodamine probe displays a highly selective fluorescent enhancement with Cu2+ among the various metal ions whereas the fluorescence of the bisboronic acid-conjugated fluorescein probe is selectively quenched by Cu2+, probably by way of a PET mechanism.
A New Fluorescein Derivative Bearing a Boronic Acid Group as a Fluorescent Chemosensor for Fluoride Ion
作者:K. M. K. Swamy、Yoon Ju Lee、Han Na Lee、Jihyun Chun、Youngmee Kim、Sung-Jin Kim、Juyoung Yoon
DOI:10.1021/jo061429x
日期:2006.10.1
A new fluorescein derivative 1 bearing a boronicacid group was investigated as a fluorescent chemosensor for F-. An off−on type fluorescence enhancement was observed by the blocking of the photoinduced electron transfer mechanism, which was induced by the interaction between fluoride and boronicacid moiety.
A High‐Affinity Fluorescent Sensor for Catecholamine: Application to Monitoring Norepinephrine Exocytosis
作者:Le Zhang、Xin A. Liu、Kevin D. Gillis、Timothy E. Glass
DOI:10.1002/anie.201810919
日期:2019.6.3
A fluorescent sensor for catecholamines, NS510, is presented. The sensor is based on a quinolone fluorophore incorporating a boronic acid recognition element that gives it high affinity for catecholamines and a turn‐on response to norepinephrine. The sensor results in punctate staining of norepinephrine‐enriched chromaffin cells visualized using confocal microscopy indicating that it stains the norepinephrine
Selective Amine Recognition: Development of a Chemosensor for Dopamine and Norepinephrine
作者:Kristen E. Secor、Timothy E. Glass
DOI:10.1021/ol048625f
日期:2004.10.1
sensor binds to catecholamines such as dopamine and norepinephrine by forming an iminium ion with the amine as well as a boronate ester with the catechol. An internal hydrogen bond produces a colorimetric response to these analytes with good selectivity for catecholamines over simple amines. The fluorescence of the sensor is quenched by the catechol.