Zobrazeno 1 - 10
of 54
pro vyhledávání: '"Sadafumi Omura"'
Publikováno v:
The Journal of Antibiotics. 49:1110-1118
In the course of our microbial transformation study on erythromycin derivatives, Streptomyces hygroscopicus ATCC 31080, which produces a poly ether antibiotic carriomycin, was found to transform erythromycin derivatives to their inactivated derivativ
Publikováno v:
YAKUGAKU ZASSHI. 112:593-614
A series of O-alkylated derivatives of erythromycin (EM) has been prepared and their biological properties were evaluated. Among them, clarithromycin (CAM, 6-O-methylerythromycin) exhibits most potent in vitro and in vivo antibacterial activities, hi
Publikováno v:
Applied and Environmental Microbiology. 57:2841-2846
To enzymatically synthesize vitamin D derivatives, we screened about 300 Streptomyces sp. strains. Streptomyces sclerotialus FERM BP-1370 and Streptomyces roseoporus FERM BP-1574 were found to have the ability to convert 25-hydroxyvitamin D3 and 1 al
Publikováno v:
Agricultural and Biological Chemistry. 54:993-997
Autor:
Naoharu Watanabe, T Obuchi, H Kondoh, Sadafumi Omura, J S Yang, Masaharu Tamai, Xiao-Tian Liang
Publikováno v:
Planta Medica. 56:198-201
A new antibiotic armillaric acid (2), has been isolated from the cultured mycelia of Armillaria mella (Vahl. ex Fr.) Quel (Trichlometaceae). Its structure was elucidated on the basis of the spectral data. Compound 2 exhibits inhibitory activity again
Autor:
Masaharu Tamai, Xiao-Tian Liang, J H Huan, Naoharu Watanabe, De-Quan Yu, J S Yang, T Obuchi, Sadafumi Omura, H. Araki
Publikováno v:
Planta Medica. 56:48-52
Successive purification of a crude extract of cultured Mi Huan Jun mycelia, followed by an assay of the effect on complete ischemia in mice, led to the isolation of a new compound with cerebral protecting activity, hereafter designated as AMG-1. The
Publikováno v:
The Journal of Antibiotics. 43:566-569
Publikováno v:
Agricultural and Biological Chemistry. 54:993-997
The effects of twelve novel triterpenoid acids isolated from the ethanolic extract of the stems of Kadsura heteroclita and A. longipedunculata, Chinese folk medicines, and three other novel triterpenoid acids semi-synthesized on cholesterol biosynthe
Publikováno v:
ChemInform. 34
Publisher Summary This chapter deals with progress in the chemical modification and structure-activity relationships of 14 and 15-membered macrolides, mainly erythromycin derivatives, 16-membered macrolides, mainly the leucomycin and tylosin families
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::054dbef9f508dc38f099d760fe7b65d0
https://doi.org/10.1016/b978-012526451-8/50004-7
https://doi.org/10.1016/b978-012526451-8/50004-7