55066-44-9Relevant academic research and scientific papers
Selective Deprotection of the Diphenylmethylsilyl (DPMS) Hydroxyl Protecting Group under Environmentally Responsible, Aqueous Conditions
Akporji, Nnamdi,Lieberman, Josh,Maser, Michael,Yoshimura, Masahiko,Boskovic, Zarko,Lipshutz, Bruce H.
, p. 5743 - 5747 (2019/11/11)
Two new methods for selective deprotection of diphenylmethylsilyl (DPMS) ethers are described. Unmasking can be achieved with either catalytic amounts of perfluoro-1-butanesulfonyl fluoride (a SuFEx reagent) under mild, aqueous micellar conditions, or using stoichiometric amounts of 18-crown-6 ether in aqueous ethanol.
CERTAIN PLADIENOLIDE COMPOUNDS AND METHODS OF USE
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Page/Page column 259, (2019/11/04)
The present disclosure provides novel pladienolide compounds, pharmaceutical compositions containing such compounds, and methods for using the compounds as therapeutic agents. These compounds may be useful in the treatment of cancers, particularly cancers in which agents that target the spliceosome and mutations therein are known to be useful. Also provided herein are methods of treating cancers by administering at least one compound disclosed herein and at least one additional therapy.
Highly Regioselective Palladium-Catalyzed Carboxylation of Allylic Alcohols with CO2
Mita, Tsuyoshi,Higuchi, Yuki,Sato, Yoshihiro
supporting information, p. 16391 - 16394 (2015/11/09)
Various allylic alcohols were carboxylated in the presence of a catalytic amount of PdCl2 and PPh3 using ZnEt2 as a stoichiometric transmetalation agent under a CO2 atmosphere (1atm). This carboxylation proceeded in a highly regioselective manner to afford branched carboxylic acids predominantly. The β,γ-unsaturated carboxylic acid thus obtained was successfully converted into an optically active γ-butyrolactone, a known intermediate of (R)-baclofen.
Development of general methods for the synthesis of new substituted allyl bromides as promising alkenylating agents
Moskalenko,Boev
, p. 953 - 959 (2014/10/16)
A general procedure has been developed for the synthesis of hitherto unknown substituted allyl bromides. The procedure includes preparation of the corresponding α,β-unsaturated carboxylic acid esters from accessible ketones according to the Horner-Emmons
Efficient one-to-one coupling of easily available 1,3-dienes with carbon dioxide
Takaya, Jun,Sasano, Kota,Iwasawa, Nobuharu
supporting information; experimental part, p. 1698 - 1701 (2011/05/04)
An efficient one-to-one coupling reaction of atmospheric pressure carbon dioxide with 1,3-dienes is realized for the first time through PSiP-pincer type palladium-catalyzed hydrocarboxylation. The reaction is applicable to various 1,3-dienes including easily available chemical feedstock such as 1,3-butadiene and isoprene. This protocol affords a highly useful method for the synthesis of β,γ-unsaturated carboxylic acid derivatives from CO2.
Synthesis and biological activity of permethrinic acid analogs containing various substituents in position 2 of the cyclopropane ring
Mirzabekova,Kuz'mina,Lukashov,Sokolova,Golosov,Kazakov,Perlova,Potapova,Kheinman,Ivanova
experimental part, p. 1139 - 1149 (2009/09/25)
A number of permethrinic acid ethyl ester derivatives having various substituents [Et, Pr, Ph, Ph(CH2) n (n = 1, 2), etc.] in position 2 of the cyclopropane ring were synthesized, and their insecticidal acivity against typhoid flies, rice weevils, and bean aphides, as well as juvenoid activity on flour beetle chrysalises, was studied. The newly synthesized compounds turned out to exhibit weak insecticidal activity against standard insects but pronounced juvenile hormone activity, which differentiates them from permethrinic acid esters.
Specific Inhibitors in Vitamin Biosynthesis. Part 7. Syntheses of Blocked 7,8-Dihydropteridines via &α-Amino Ketones
Al-Hassan, Saiba S.,Cameron, Robert J.,Curran, Adrian W. C.,Lyall, William J. S.,Nicholson, Sydney H.,et al.
, p. 1645 - 1660 (2007/10/02)
The synthesis of 15 blocked 7,8-dihydropteridines is described in which the pyrazine ring is built from a derivative of an α-amino ketone.Three routes to the amino ketones based upon amino acids, nitrosyl chloride addition to alkenes, and nitro alcohols are discussed.The compounds synthesised are inhibitors of 6-hydroxymethyl-7,8-dihydropterin pyrophosphokinase , an enzyme in the pathway leading to dihydrofolate, and the inhibitory potencies of the compounds are discussed in the light of a hypothetical active site model for the enzyme.
