An anticancer compound is disclosed which is represented by the formula ##STR1## wherein one of R.sup.1 and R.sup.2 is a phenyl-lower alkyl optionally having a substituent, phenyl-lower alkenyl or naphthyl-lower alkyl, the other of R.sup.1 and R.sup.2 is hydrogen or acyl, and R.sup.3 is hydrogen, acyl or tetrahydrofuranyl, or represented by the formula ##STR2## wherein R.sup.x is an optionally substituted pyridyl, Y is arylene and .alpha. is a known 5-fluorouracil derivative residue which can be converted to 5-fluorouracil in vivo and which is linked to the carbonyl by an ester or amide linkage.
Synthesis of Optically Active 2-Amino-1,3,4-oxadiazoles and their Hybrid Peptides
作者:Chilakapati Madhu、Girish Prabhu、Rumpa Pal、T. N. Guru Row、Vommina V. Sureshbabu
DOI:10.1002/jhet.2166
日期:2015.9
Synthesis of 2‐amino‐1,3,4‐oxadiazole derivatives of Nα‐Cbz(benzyloxycarbonyl)/Boc‐protected amino/peptide acids under sonication is described. The conditions involved in the present protocol are simple, mild, and racemization free. The utility of 2‐amino group in the substituted oxadiazoles for the incorporation of peptide and ureido bonds to obtain hybrid peptidomimetics is also delineated. The 2‐amino‐1
Compounds having the formula I wherein A, m and R
1
are herein defined are Hepatitis C virus NS5b polymerase inhibitors. Also disclosed are compositions and methods for inhibiting hepatitis replication, processes for making the compounds and synthetic intermediates used in the process
Discovery of a series of ester-substituted NLRP3 inflammasome inhibitors
作者:David Harrison、Nicolas Boutard、Krzysztof Brzozka、Marta Bugaj、Stefan Chmielewski、Anna Cierpich、John R. Doedens、Charles-Henry R.Y. Fabritius、Christopher A. Gabel、Michal Galezowski、Piotr Kowalczyk、Oleksandr Levenets、Magdalena Mroczkowska、Katarzyna Palica、Roderick A. Porter、David Schultz、Marta Sowinska、Grzegorz Topolnicki、Piotr Urbanski、Jakub Woyciechowski、Alan P. Watt
DOI:10.1016/j.bmcl.2020.127560
日期:2020.12
the NLRP3inflammasome have been approved. In this work, we used the known NLRP3inflammasomeinhibitor CP-456,773 (aka CRID3 or MCC 950) as our starting point and undertook a Structure-Activity Relationship (SAR) analysis and subsequent scaffold-hopping exercise. This resulted in the rational design of a series of novel ester-substituted urea compounds that are highly potent and selective NLRP3 inflammasome
Catalytic Asymmetric Synthesis of Diketopiperazines by Intramolecular Tsuji–Trost Allylation
作者:Matteo Faltracco、Silvia Cotogno、Christophe M. L. Vande Velde、Eelco Ruijter
DOI:10.1021/acs.joc.9b01994
日期:2019.9.20
We report the intramolecular Tsuji–Trost reaction of Ugi adducts to give spiro-diketopiperazines in high yield and with high enantioselectivity. This approach allows the catalyticasymmetric construction of a broad range of these medicinally important heterocycles under mild conditions, in two steps from cheap, commercially available starting materials.