The invention concerns anti-tumour agents of formula (I) wherein each of R1, R2 and R3 has the meanings defined in the specification including hydrogen, (1-4C)alkyl, (3-4)alkenyl, (3-4C)alkynyl, amino, (1-4C)alkylamino and (1-4C)alkoxy; each of R4 and R5 is (1-4C)alkyl; each of R6 and R7 is hydrogen or (1-4C)alkyl; X is oxygen; m is 1 or 2 and each R8 is as defined in the specification; each of Y1 and Y2 is halogeno, (1-4C)alkanesulphonyloxy, benzenesulphonyloxy or phenyl-(1-4C)akanesulphonyloxy; or a pharmaceutically-acceptable salt thereof; provided that at least one of R1, R2 and R3 is other than hydrogen; a process for preparation, pharmaceutical compositions containing them and their use in the production of an anti-proliferative effect.
Visible-light-mediated cleavage of polymer chains under physiological conditions via quinone photoreduction and trimethyl lock
作者:Vinh X. Truong、Fanyi Li、Francesca Ercole、John S. Forsythe
DOI:10.1039/c7cc07257k
日期:——
We introduce a click and visible-light triggered unclick approach via thio-bromo reaction and hydroquinone photoreduction/trimethyl lock cleavage for polymer modifications.
A POLYMER AND A TOPICAL COMPOSITION COMPRISING THE POLYMER
申请人:UNILEVER GLOBAL IP LIMITED
公开号:US20220331225A1
公开(公告)日:2022-10-20
The present invention relates to a polymer of formula I, a cosmetic composition comprising the polymer of formula I, a method of synthesizing the polymer of formula I; and use of the polymer of formula Ito provide a benefit in a photoresponsive way.