Synthesis and antibacterial activity of 2α-functionalized 1β-methylcarbapenems related to KR-21012

Autor: Hyun Jung Kwak, Jae Hoon Kim, Cheol Hae Lee, Bong Jin Kim, Do Kyu Pyun, Eun Ji Kim, Hee J. Jeong
Rok vydání: 2000
Předmět:
Zdroj: Bioorganic & Medicinal Chemistry Letters. 10:333-336
ISSN: 0960-894X
DOI: 10.1016/s0960-894x(99)00692-7
Popis: The 2α-functionalized 1β-methylcarbapenems 3 were synthesized from the 2-formyl 1β-methylcarbapenem intermediate 5 Download : Download high-res image (85KB) Download : Download full-size image Scheme 1 . Reagents and reaction conditions; (i) MnO2, CH2Cl2, reflux (70%); (ii) RMgX or RLi, THF or Et2O (50–75%); (iii) KF, n-Bu4NBr, →KF, n-Bu4NBr, AcOH, THF (80%); (iv) Pd(PPh3)4, SHE, THF (62%). . The best compound in the series of 2α-(hydroxy)alkylcarbapenems, KR-21012, displayed well balanced in vitro and in vivo activity as a parent compound of oral carbapenem.
Databáze: OpenAIRE