A compound is disclosed herein comprising
or a pharmaceutically acceptable salt or a prodrug thereof;
wherein R is OH or NH
2
.
Methods, compositions, and medicaments related thereto are also disclosed.
本文揭示了一种化合物,包括其药用盐或前药;其中R为OH或NH2。还公开了相关的方法、组合物和药物。
Benzoxazoles
申请人:Euro-Celtique, S.A.
公开号:US06372770B1
公开(公告)日:2002-04-16
Novel compounds which are effective PDE IV inhibitors are disclosed. The compounds possess improved PDE IV inhibition as compared to theophylline or rolipram, with improved selectivity with regard to, e.g., PDE III inhibition.
MACROCYCLIZATION REACTIONS AND INTERMEDIATES USEFUL IN THE SYNTHESIS OF ANALOGS OF HALICHONDRIN B
申请人:FANG Francis G.
公开号:US20160264594A1
公开(公告)日:2016-09-15
The invention provides methods for the synthesis of eribulin or a pharmaceutically acceptable salt thereof (e.g., eribulin mesylate) through a macrocyclization strategy. The macrocyclization strategy of the present invention involves subjecting a non-macrocyclic intermediate to a carbon-carbon bond-forming reaction (e.g., an olefination reaction (e.g., Homer-Wadsworth-Emmons olefination), Dieckmann reaction, catalytic Ring-Closing Olefin Metathesis, or Nozaki-Hiyama-Kishi reaction) to afford a macrocyclic intermediate. The invention also provides compounds useful as intermediates in the synthesis of eribulin or a pharmaceutically acceptable salt thereof and methods for preparing the same.