5331-62-4Relevant academic research and scientific papers
Hetero-calix[4]pyrroles: Incorporation of furans, thiophenes, thiazoles or fluorenes as a part of the macrocycle
Song, Mi-Young,Na, Hee-Kyung,Kim, En-Young,Lee, Si-Joon,Kim, Kyung Il,Baek, Eun-Mi,Kim, Hong-Seok,An, Duk Keun,Lee, Chang-Hee
, p. 299 - 301 (2004)
Furans, thiazoles, fluorene or thiophene incorporated calix[4]pyrrole analogues were synthesized and characterized. The synthesis was achieved by utilization of various building blocks such as 7, 13, 14, 18 and 21. Acid catalyzed condensation of those building blocks with acetone or meso-disubstituted dipyrromethanes afforded desired macrocycles.
Bioreductively Activatable Prodrug Conjugates of Combretastatin A-1 and Combretastatin A-4 as Anticancer Agents Targeted toward Tumor-Associated Hypoxia
Chaplin, David J.,Davis, Peter,Devkota, Laxman,Gerberich, Jeni L.,Hamel, Ernest,Kuch, Bunnarack,Macdonough, Matthew T.,Mason, Ralph P.,Mondal, Deboprosad,Pinney, Kevin G.,Ramirez, Alejandro J.,Shi, Zhe,Strecker, Tracy E.,Trawick, Mary Lynn,Wang, Yifan,Winn, Blake A.
supporting information, (2020/03/30)
The natural products combretastatin A-1 (CA1) and combretastatin A-4 (CA4) function as potent inhibitors of tubulin polymerization and as selective vascular disrupting agents (VDAs) in tumors. Bioreductively activatable prodrug conjugates (BAPCs) can enha
Synthesis and anion-binding studies of thiaphlorins and covalently linked thiaphlorin-porphyrin dyads
Gupta, Iti,Froehlich, Roland,Ravikanth, Mangalampalli
experimental part, p. 1884 - 1900 (2009/04/04)
A series of thiaphlorins with N2S2 and N3S cores have been prepared in decent yields from readily available precursors. The thiaphlorins were characterized by all spectroscopic techniques and the structures of two thiaphlo
Synthesis of functionalized thia analogues of phlorins and covalently linked phlorin-porphyrin dyads
Gupta, Iti,Froehlich, Roland,Ravikanth
, p. 3726 - 3728 (2007/10/03)
The 21,23-dithia and 21-thia analogues of phlorins and mono-functionalized thiaphlorins were synthesized using easily available precursors and the mono-functionalized thiaphlorins were used further to synthesize the first examples of three covalently link
STUDIES TOWARD ALKYLTHIOPHENE-2-CARBOXALDEHYDES. REDUCTION OF 3-ALKENYLTHIOPHENES WITH TRIETHYLSILANE/TRIFLUOROACETIC ACID. REGIOSELECTIVTY IN FORMYLATION REACTIONS OF ALKYLTHIOPHENES
Detty, Michael R.,Hays, David S.
, p. 925 - 938 (2007/10/02)
Reduction of 2- or 3-alkenylthiophenes with Et3SiH/CF3CO2H in CH2Cl2 gives the corresponding 2- or 3-alkylthiophene in >90percent isolated yield.The regioselectivity of various Vilsmeier formylations of 3-alkylthiophenes was found to be a function of increasing steric bulk in the 3-alkyl substituent and in the Vilsmeier reagent.The regioselectivty of formylations of 3-alkylthiophenes by initial lithiation with butyllithium in ether followed quenching with DMF is independent of the presence or absence of TMEDA.
Use of 2-Thienyl, 2-Furyl, 5-Ethyl-2-furyl, and Protonated 4-Acetylphenyl Substituents in Carbon-14 Nuclear Magnetic Resonance Chemical Shift Correlations
Olah, George A.,Berrier, Arthur L.,Prakash, G.K.Surya
, p. 3903 - 3909 (2007/10/02)
The application of the tool of increasing electron demand has been extended by employing increased electron-withdrawing as well as electron-donating substituents.In combination with the electron-withdrawing 4-protonated acetylphenyl substituent and the el
