1) bicyclic nucleus
双环母核
1.
Two synthetic routes were caused out to construct 1β-methylcarbapenem bicyclic nucleus: the intramolecular carbene-inserting cyclization and the Dieckmann cy clization.
研究了 1β-甲基碳青霉烯双环母核的两种合成方法 :分子内卡宾插入环合法和 Dieckmann反应环合法。
2) bicyclic nucleus of Biapenem
比阿陪南双环母核
1.
A key intermediate of Biapenem, bicyclic nucleus of Biapenem{allyl(4R,5R,6S)-6-[(R)-1-(t-butyldimethylsilyloxy)ethyl]-3-(diphenoxyphosphoryloxy)-4-methyl-7-oxo-1-azabi-cyclo[3.
从水杨酰胺出发,通过环合、酰化、Reformatsky反应、取代和Dieckmann环化反应,合成了碳青霉烯类抗生素比阿陪南的关键中间体——比阿陪南双环母核{(4R,5R,6S)-6-[(R)-1-叔丁基二甲基硅氧乙基]-3-二苯基磷酰氧基-4-甲基-7-氧代-1-氮杂双环-[3。
3) p-Nitrobenzyl-6-(1-hydroxyethyl)-1-azabicyclo(3.2.0)heptane-3,7-dione-2-carboxylate
碳青霉烯双环母核
4) isocyclic stem-nucleus
等环母核
5) heterocyclic stem nucleus
杂环母核
6) acyclic stemnucleus
无环母核
补充资料:1b-甲基碳青霉烯双环母核 (MAP)
分子式:C29H27N2O10P
分子量:594.52
CAS号:90776-59-3
性质:
分子量:594.52
CAS号:90776-59-3
性质:
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条