複素環化学国際雑誌最新号「Heterocyclic Communications」vol.23,(issue 5) appeared on line on October, 2017, that includes one reviews, one preliminary communications, and nine research articles on heterocyclic compounds. This unique international journal founded 1964 by the late Prof. Radha Raman Gupta(1941-2008) had been published as "Heterocyclic Communications" by the Publishing House Ltd. and the publication has been succeeded by De Gruyter. For details please cf. the web site: Heterocyclic Communications of De Gruyter(http://www.degruyter/view/j/2017.23.issue-5.xml).