133522-40-4Relevant articles and documents
Synthesis and structure-activity relationship of a novel class of 15-membered macrolide antibiotics known as '11a-azalides'
Sugimoto, Tomohiro,Tanikawa, Tetsuya,Suzuki, Keiko,Yamasaki, Yukiko
, p. 5787 - 5801 (2012/11/06)
Macrolide antibiotics are widely prescribed for the treatment of respiratory tract infections; however, the increasing prevalence of macrolide-resistant pathogens is a public health concern. Therefore, the development of new macrolide scaffolds with activities against resistant pathogens is urgently needed. An efficient method for reconstructing the erythromycin A macrolactone skeleton has been established. Based on this methodology, novel 15-membered macrolides, known as '11a-azalides', with substituents at the C12, C13, or C4″ positions were synthesized and their antibacterial activities were evaluated. These derivatives showed promising antibacterial activities against erythromycin-resistant Streptococcus pneumoniae. Among them, the C4″ substituted derivatives had the most potent activity against erythromycin-resistant S. pneumoniae.
Resolution of β-aminoalcohols and 1,2-diamines using fractional crystallization of diastereomeric salts of dehydroabietic acid
Guangyou, Zhang,Yuquing, Liao,Zhaohui, Wang,Nohira, Hiroyuki,Hirose, Takuji
, p. 3297 - 3300 (2007/10/03)
(S)-(+)-1-Amino-3-phenyloxy-2-propanol, (R)-(-)-2-amino-1-phenylethanol, (S)-(+)-1-amino-2-propanol, (1S,2S)-(+)-2-aminocyclohexanol and (1S,2S)-(+)-1,2-diaminocyclohexane were resolved using dehydroabietic acid. It was shown that good to high enantiomeric purity, between 81~>99% ee, was obtained and that dehydroabietic acid could be easily and efficiently recovered in a reusable form.
RESOLUTION OF dl-1-PHENOXY-2-HYDROXY-3-AMINOPROPANE INTO ENANTIOMERS
Kozlova, G. S.,Roitfel'd, F. I.,Gunar, V. I.
, p. 286 - 288 (2007/10/02)
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