A facile two synthon approach to the camptothecin skeleton
作者:H.G.M. Walraven、U.K. Pandit
DOI:10.1016/0040-4020(80)80022-6
日期:1980.1
A synthesis of deethyldesoxycamptothecin via the reaction of two readily accessible synthons is described. One of the synthons constitutes the ABC ring system of camptothecin, while the second provides all the C atoms of the ringsD and E. The synthetic approach is suited for the total synthesis of camptothecin analogues.
Heteroarylakanoic acids as intergrin receptor antagonists
申请人:——
公开号:US20040092497A1
公开(公告)日:2004-05-13
The present invention relates to a class of compounds represented by formula (I) or a pharmaceutically acceptable salt thereof, pharmaceutical compositions comprising compounds of Formula (I), and methods of selectively antagonizing the &agr;&ngr;&bgr;
3
and/or the &agr;&ngr;&bgr;
5
integrin without significantly antagonizing the IIb/IIIa integrin.
1
Heteroarylalkanoic acids as integrin receptor antagonists
申请人:——
公开号:US20020133023A1
公开(公告)日:2002-09-19
The present invention relates to a class of compounds represented by the Formula I
1
or a pharmaceutically acceptable salt thereof, pharmaceutical compositions comprising compounds of the Formula I, and methods of selectively antagonizing the &agr;
V
&bgr;
3
and/or the &agr;
V
&bgr;
5
integrin without significantly antagonizing the IIb/IIIa or &agr;
V
&bgr;
6
integrin.
222. The jaborandi alkaloids. Part I. The synthesis of homo- and isohomo-pilopic acids and of r-pilocarpidine and r-isopilocarpidine by new methods and the resolution of r-pilocarpine
作者:A. N. Dey
DOI:10.1039/jr9370001057
日期:——
Poljakowa et al., Zhurnal Obshchei Khimii, 1939, vol. 9, p. 1402,1407