88192-20-5Relevant articles and documents
Carba-cyclophellitols Are Neutral Retaining-Glucosidase Inhibitors
Beenakker, Thomas J. M.,Wander, Dennis P. A.,Offen, Wendy A.,Artola, Marta,Raich, Lluís,Ferraz, Maria J.,Li, Kah-Yee,Houben, Judith H. P. M.,Van Rijssel, Erwin R.,Hansen, Thomas,Van Der Marel, Gijsbert A.,Codée, Jeroen D. C.,Aerts, Johannes M. F. G.,Rovira, Carme,Davies, Gideon J.,Overkleeft, Herman S.
, p. 6534 - 6537 (2017)
The conformational analysis of glycosidases affords a route to their specific inhibition through transition-state mimicry. Inspired by the rapid reaction rates of cyclophellitol and cyclophellitol aziridine - both covalent retaining β-glucosidase inhibitors - we postulated that the corresponding carba cyclopropyl analogue would be a potent retaining β-glucosidase inhibitor for those enzymes reacting through the 4H3 transition-state conformation. Ab initio metadynamics simulations of the conformational free energy landscape for the cyclopropyl inhibitors show a strong bias for the 4H3 conformation, and carba-cyclophellitol, with an N-(4-azidobutyl)carboxamide moiety, proved to be a potent inhibitor (Ki = 8.2 nM) of the Thermotoga maritima TmGH1 β-glucosidase. 3-D structural analysis and comparison with unreacted epoxides show that this compound indeed binds in the 4H3 conformation, suggesting that conformational strain induced through a cyclopropyl unit may add to the armory of tight-binding inhibitor designs.
Design and synthesis of a bis-macrocyclic host and guests as building blocks for small molecular knots
Fenlon, Edward E.,Keyes, Rebecca J.,Lockey, Stephen D.,Margolis, Elizabeth A.
supporting information, p. 2314 - 2321 (2020/10/14)
The thread-link-cut (TLC) approach has previously shown promise as a novel method to synthesize molecular knots. The modular second-generation approach to small trefoil knots described herein involves electrostatic interactions between an electron-rich bismacrocyclic host compound and electron-deficient guests in the threading step. The bis-macrocyclic host was synthesized in eight steps and 6.6% overall yield. Ammonium and pyridinium guests were synthesized in 4-5 steps. The TLC knot-forming sequence was carried out and produced a product with the expected molecular weight, but, unfortunately, further characterization did not produce conclusive results regarding the topology of the product.
For the control of the chimeric antigen receptor of the T cell activation/inhibit the connecting arm and its application (by machine translation)
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Paragraph 0020; 0031; 0034, (2019/01/23)
The invention discloses a method for control CAR - T/inhibit the activation of the link arm, and one end of the cells containing the target [...] molecule, the other at one end and can be specific CAR - T cell identified with biological orthogonality of the part, and the middle of the can be biological orthogonal fracture chemical group coupling. This invention can realize the CAR - T cell from active to a resting state fast and flexible conversion, to CAR - T cell inhibiting the systematic and high efficiency. Adjusting has reversibility, not damage or kill some CAR - T cell, can realize the CAR - T cell from active to close and then to activate the flexible change, the overall functions of the treatment is not affected. (by machine translation)