Peptides. VI. Some Oxime Carbonates as Novel<i>t</i>-Butoxycarbonylating Reagents
作者:Masumi Itoh、Daijiro Hagiwara、Takashi Kamiya
DOI:10.1246/bcsj.50.718
日期:1977.3
Several t-butoxycarbonyl derivatives of oximes were prepared through the corresponding oxime chloroformates. Of these, diethyl (t-butoxycarbonyloxyimino)malonate and 2-(t-butoxycarbonyloxyimino)-2-phenylacetonitrile were utilized for the preparation of t-butoxycarbonylamino acids under various conditions. The results are summarized in a table.
Here we report synthetic methodology affording in the most efficient way the rapid preparation of newdithiolethiones (DTTs) and methanethiosulfonates (MTSs). These were evaluated as STAT3 inhibitors since these electrophilic systems could react with thiol groups of STAT3-SH2 domain. The results showed that MTSs strongly interacted with the SH2 domain, whereas the corresponding DTTs possessed lower
Abstract Aromatic α-hydroxyiminoacetonitriles can be conveniently prepared by a facile one-pot procedure in high yields involving chlorination of the corresponding aldoximes with tert-butylhypochlorite followed by reaction with alkali cyanide.
Abstract Aromatic α-hydroxyiminoacetonitriles can be conveniently prepared by a facile one-pot procedure in high yields involving chlorination of the corresponding aldoximes with tert-butylhypochlorite followed by reaction with alkali cyanide.
Synthesis of Benzofuro[2,3-b]benzofuran Derivatives under Hoesch Reaction Conditions
作者:Robert Kawe˛cki、Aleksander P. Mazurek、Lech Kozerski、Jan K. Maurin
DOI:10.1055/s-1999-3484
日期:1999.5
Condensation of phenols with aromatic α-hydroxyiminonitriles or α-oxonitriles under Hoesch reaction conditions leads to derivatives of 5a-amino-5a,10b-dihydrobenzofuro[2,3-b]benzofuranols.