Synthesis of (−)-Hygromycin A: Application of Mitsunobu Glycosylation and Tethered Aminohydroxylation
作者:Timothy J. Donohoe、Aida Flores、Carole J. R. Bataille、Fátima Churruca
DOI:10.1002/anie.200902840
日期:2009.8.17
Key points in the synthesis of (−)‐hygromycin A are the tetheredaminohydroxylation reaction used to prepare the aminocyclitol unit and the choice of a bulky protecting group on the sugar unit to facilitate selective Mitsunobuglycosylation and also bestow kinetic stability upon an otherwise vulnerable proton.
The first complete synthesis of antibiotic hygromycin A is reported; coupling of the protected sugar moiety (2) and the aminocyclitol (3) derived from D-glucose as the optically active from, followed by deprotection, gives the product (1) which was identified with an aunthentic sample by 400 MHz 1H n.m.r. spectroscopy.
据报道,首次合成了抗生素潮霉素A。将受保护的糖部分(2)与衍生自D-葡萄糖的氨基环糖醇(3)进行旋光偶合,然后脱保护,得到产物(1),该产物通过400 MHz 1 H nmr光谱与无定形样品鉴别。
The first total synthesis of the antibiotic (-)-hygromycin A (1) has been achieved by a coupling reaction of the sugar moiety (2) and the cyclitol moiety (3). Both components were synthesized in homochiral forms starting from D-glucose. This synthesis fully confirmed the unique structure of 1, which is much different from other usual aminocyclitol antibiotics.
CHIDA, NORITAKA;OHTSUKA, MASAMI;NAKAZAWA, KEIICHI;OGAWA, SEIICHIRO, J. CHEM. SOC. CHEM. COMMUN.,(1989) N, C. 436-438
HYGROMYCIN A COMPOUNDS AND METHODS OF TREATING SPIROCHETE DISEASES
申请人:LEWIS Kim
公开号:US20210275559A1
公开(公告)日:2021-09-09
This invention provides, among other things, compounds useful for treating spirochete diseases such as Lyme disease, as well as pharmaceutical formulations and/or environmental baits containing such compounds.