A novel triptycene-based ligand with a preorganized framework was designed to model carboxylate-bridged diiron active sites in bacterial multicomponent monooxygenase (BMM) hydroxylase enzymes. The synthesis of the bis(benzoxazole)-appended ligand L1 depicted was accomplished in 11 steps. Reaction of L1 with iron(II) triflate and a carboxylate source afforded the desired diiron(II) complex [Fe(2...

PET (positron emission tomography) in vivo imaging of cerebral conformational diseases is essentially based on non-peptide small molecule ligands used to detect early alterations in peptide secondary structures and subsequent accumulation of aberrant oligomers and protein deposits involved in progressive neurodegeneration, cognitive and movement disorders. In this article, an overview is given ...

In vivo visualization of a-synuclein deposition by carbon-11-labelled 2-[2-(2-dimethylaminothiazol5-yl)ethenyl]-6-[2-(fluoro)ethoxy]benzoxazole positron emission tomography in multiple system atrophy Akio Kikuchi, Atsushi Takeda, Nobuyuki Okamura, Manabu Tashiro, Takafumi Hasegawa, Shozo Furumoto, Michiko Kobayashi, Naoto Sugeno, Toru Baba, Yasuo Miki, Fumiaki Mori, Koichi Wakabayashi, Yoshihit...

Streptomyces sp. strain NTK 937 is the producer of the benzoxazole antibiotic caboxamycin, which has been shown to exert inhibitory activity against Gram-positive bacteria, cytotoxic activity against several human tumor cell lines, and inhibition of the enzyme phosphodiesterase. In this genome announcement, we present a draft genome sequence of Streptomyces sp. NTK 937 in which we identified at...

The optimized molecular structure, vibrational frequencies, corresponding vibrational assignments of 2(p-nitrobenzyl)benzoxazole have been investigated experimentally and theoretically using Gaussian09 software package. Potential energy distribution of the normal modes of vibrations are done using GAR2PED program. The optimized geometrical parameters are in agreement with that of similar deriva...

     In this study an easy, green, efficient and simple approach is reported for the synthesis of some benzothiazole-, benzimidazole- and benzoxazole-2-thiolderivatives. The proposed approach employs the reaction of corresponding aromatic amine with potassium isopropyl xanthate (Z11) in the presence of copper sulfate (CuSO4) as a catalyst under conventional heating and ultrasonic irr...

The study aims to analyze the effect of heteroatom replacement on benzimidazole derivative chemosensor compounds ability form hydrogen bonds with anions. In this case, N in sensor compound (S1) is replaced O become a benzoxazole (S3). Calculating energy molecules involved electron level gives following results: replacing heteroatoms more electronegative atoms increases HOMO molecules, making re...