(of a compound) containing four rings in its molecular structure
Examples of 'tetracyclic' in a sentence
tetracyclic
A novel series of tetracyclic quinobenzothiazine derivatives was synthetized.
Andrzej Zięba, Małgorzata Latocha, Aleksander Sochanik, Anna Nycz, Dariusz Kuśmierz 2016, 'Synthesis and In Vitro Antiproliferative Activity of Novel Phenyl Ring-Substituted5-Alkyl-12(H)-quino[3,4-b][1,4]benzothiazine Derivatives', Moleculeshttp://www.mdpi.com/1420-3049/21/11/1455. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
The target tetracyclic compounds were prepared from tetraynes with a triphenylphosphine selenide or triphenylphosphine sulfide.
Baohua Liu, Qiong Hu, Yinshan Wen, Bo Fang, Xiaoliang Xu, Yimin Hu 2019, 'Versatile Dibenzothio[seleno]phenes via Hexadehydro-Diels–Alder Domino Cyclization',Frontiers in Chemistryhttps://www.frontiersin.org/article/10.3389/fchem.2019.00374/full. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
This article reviews the microbial modifications of tetranortriterpenoids, tetracyclic triterpenoids and pentacyclic triterpenoids.
Syed Adnan Ali Shah, Huey Ling Tan, Sadia Sultan, Muhammad Afifi Bin Mohd Faridz,Mohamad Azlan Bin Mohd Shah, Sharifah Nurfazilah, Munawar Hussain 2014, 'Microbial-Catalyzed Biotransformation of Multifunctional Triterpenoids Derived fromPhytonutrients', International Journal of Molecular Scienceshttp://www.mdpi.com/1422-0067/15/7/12027. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Ocotillol-type saponins are one kind of tetracyclic triterpenoids, sharing a tetrahydrofuranring.
Juan Liu, Yangrong Xu, Jingjing Yang, Wenzhi Wang, Jianqiang Zhang, Renmei Zhang,Qingguo Meng 2017, 'Discovery, semisynthesis, biological activities, and metabolism of ocotillol-typesaponins', Journal of Ginseng Researchhttp://www.sciencedirect.com/science/article/pii/S1226845316301816. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Pharmacological research has identified the main antitumor components are tetracyclic triterpene quassinoids.
Peng X, Hu Y, Tan W, Wang S, Chen R, Chen M, Wang Y 2013, 'Chemical components, pharmacological properties, and nanoparticulate delivery systemsof Brucea javanica', International Journal of Nanomedicinehttp://www.dovepress.com/chemical-components-pharmacological-properties-and-nanoparticulate-del-a11851. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
From the intermediate keto-aldehyde 9, readily available from 1b through the ozonide 2, the new tetracyclic diterpene 4 was synthesized.
Santos Catarina dos, Zukerman-Schpector Julio, Imamura Paulo M. 2003, 'Chemical transformation of abietic acid to new chiral derivatives', Journal of the Brazilian Chemical Societyhttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532003000600017. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Finally, a series of manipulations of the tetracyclic scaffold obtained gave access to valuable precursors of biologically active molecules.
Javier Mateos, Nicholas Meneghini, Marcella Bonchio, Nadia Marino, Tommaso Carofiglio,Xavier Companyó, Luca Dell'Amico 2018, 'Microfluidic light-driven synthesis of tetracyclic molecular architectures', Beilstein Journal of Organic Chemistryhttps://doi.org/10.3762/bjoc.14.219. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Both are characterized by some high relative abundance of tetracyclic compounds with no predominance of other specific diterpenoids.
Y. Lu, Y. Hautevelle, R. Michels 2013, 'Determination of the molecular signature of fossil conifers by experimental palaeochemotaxonomy– Part 1: The Araucariaceae family', Biogeoscienceshttp://www.biogeosciences.net/10/1943/2013/bg-10-1943-2013.pdf. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)