Diabetes mellitus is a severe endocrine disease that affects more and more people every year. Modern medical chemistry sets itself the task of finding effective and safe drugs against diabetes. This review provides an overview of potential antidiabetic drugs based on three heterocyclic compounds, namely morpholine, piperazine, and piperidine. Studies have shown that compounds containing their moieties can be quite effective in vitro and in vivo for the treatment of diabetes and its consequences.

In this review, the presence of antimicrobial and fungicidal activity in heterocyclic antidepressants was investigated. The already proven connection between the intestinal microbiome and mental health prompted the idea of whether these drugs disrupt the normal intestinal microflora. In addition, there is a serious problem of increasing resistance of microorganisms to antibiotics. In this article, we found that almost all of the antidepressants considered (except moclobemide, haloperidol, and doxepin) have antimicrobial activity and can suppress the growth of not only pathogenic microorganisms but also the growth of bacteria that directly affect mental health (such as Lactobacillus, Lactococcus, Streptococcus, Enterococcus, and Bifidobacterium).

In order to optimize biofuel (including bioethanol) production processes, various problems need to be solved, such as increasing the sugar content of raw materials/biomass to gain a higher yield of the product. This task can be solved in several ways, with their own advantages and disadvantages, and an integrated approach, such as using a combination of ripening agents and phytohormones or application of a superabsorbent polymer with at least one sugar-enhancing agent, can be applied as well. Here, we reviewed several methods, including pre- and postharvest factors (light, temperature, partial replacement of potassium with magnesium, etc.), genetic modifications (traditional breeding, phytohormones, etc.), chemical ripening methods (Ethephon, Moddus, etc.), and some alternative methods (DMSO treatment, ionic liquids, etc.). The aim of this review was to provide a comprehensive, up-to-date summary of methods of increasing the carbohydrate level in plants/biomass for bioethanol production.

This study presents the synthesis and antidiabetic and hematopoietic activity of ionic compounds based on 2-(diphenylmethoxy)-N,N-dimethylethanamine (diphenhydramine). Synthesis is carried out under ultrasonic (US) and microwave (MW) irradiation as well as using a conventional method (thermal activation). The synthesized ionic compounds have been tested for antidiabetic effect according to the inhibitory action against α-glucosidase and α-amylase (in vitro). All the synthesized derivatives of diphenhydramine showed higher inhibitory activity against α-glucosidase than commercially available diphenhydramine hydrochloride. Moreover, two of them, 1m (66.9%) and 1k (64.2%), had a greater inhibitory activity than the reference drug acarbose (51.8%). The hematopoietic activity was studied in albino laboratory female rats (in vivo). The compounds 1b, 1f, and 1k can restore immune blood cells (hematopoietic activity), equal to or exceeding that of the commercially available diphenhydramine hydrochloride and control (methyluracil).

Synthesis of 3-chloro-N,N-diethyl-N-(2-(mesitylamino)-2-oxoethyl)propan-1-aminium iodide (1) was performed by via N-alkylation in conventional conditions and using microwave irradiation and ultrasound activation. The synthesized ionic compound was characterized using IR, 1H and 13C NMR, growth-stimulating activity had been tested for ten varieties and hybrids of sweet sorghum seeds.