рибоза циклическая форма - SERP Analysis

https://ru.wikipedia.org/wiki/%D0%A6%D0%B8%D0%BA%D0%BB%D0%B8%D1%87%D0%B5%D1%81%D0%BA%D0%B0%D1%8F_%D0%90%D0%94%D0%A4-%D1%80%D0%B8%D0%B1%D0%BE%D0%B7%D0%B0

https://ru.wikipedia.org/wiki/%D0%A0%D0%B8%D0%B1%D0%BE%D0%B7%D0%B0

http://profil.adu.by/mod/book/view.php?id=1973

https://xn--80aabqbqbnift4db.xn--p1ai/antigen-item/Cyclic-Adenosine-Diphosphate-Ribose-cADPR/

https://orgchem.tsu.ru/carbohyd/cycling.htm

https://bigenc.ru/c/riboza-e72386

http://acetyl.ru/o/ea651j2p2i2h63p2i3h64p2i4h65i.php

https://www.youtube.com/watch?v=iXm0B0p6uKU

https://estestvoznanie.academic.ru/1077/%D0%A0%D0%B8%D0%B1%D0%BE%D0%B7%D0%B0

http://e-derslik.edu.az/books/350/units/unit-1/page128.xhtml