Synthesis of 2-Amino-4-arylazulenes from 8-Aryl-2-cyclohepta[]furan-2-ones and Transformation into 6-Aryl-7-naphth[3,2,1-]azulen-7-ones.

2-Amino-4-arylazulene derivatives were prepared from 8-aryl-2-cyclohepta[]furan-2-ones, which were converted into 6-aryl-7-naphth[3,2,1-]azulen-7-ones through a several step process. The reaction of 8-aryl-2-cyclohepta[]furan-2-ones bearing an ester group at the 3-position with malononitrile in the presence of triethylamine afforded 2-amino-4-arylazulenes. The prepared 2-amino-4-arylazulenes were converted to the corresponding 2-chloro derivatives by the Sandmeyer reaction, which were subsequently transformed into 2,4-diarylazulenes by Suzuki-Miyaura coupling with various aryl boronic acids.

Allyl isothiocyanate suppressed periodontal tissue destruction in mice via bacteriostatic and anti-inflammatory activities against Porphyromonas gingivalis.

Objectives: Allyl isothiocyanate (AITC) is a phytochemical that is abundantly present in cruciferous vegetables, such as wasabi and mustard. Among its pharmacological properties, it demonstrates anticancer, antifungal, and anti-inflammatory activities. This study aimed to investigate the functions of AITC against periodontopathic bacteria and its effects on a mouse model of periodontitis.

Application of the Thermal Analysis of Frozen Aqueous Solutions to Assess the Miscibility of Hyaluronic Acid and Polymers Used for Dissolving Microneedles.

The combination of multiple polymers is anticipated to serve as a means to diversify the physical properties and functionalities of dissolving microneedles. The mixing state of components is considered as a crucial factor in determining their suitability. The purpose of this study was to elucidate whether thermal analysis of frozen aqueous solutions can appropriately predict the miscibility of hyaluronic acid (HA) and other polymers used for dissolving microneedles prepared by a micromolding method.