Exploring hydroamination-cycloaddition-fragmentation sequences to access polycyclicguanidines and vinyl-2-aminoimidazoles
作者:Ki-Hyeok Kwon、Anne V. Edwards、Miao Yang、Ryan E. Looper
DOI:10.1016/j.tet.2017.08.052
日期:2017.10
eneyne unit affords a guanidine-substituted diene capable of reacting with dienophiles. These substrates undergo [4+2]-cycloadditionreactions to generate a series of complex cyclic- and spirocyclic-guanidines. Select substrates can further undergo a ring opening-elimination cascade that ultimately reveals a vinyl-2-aminoimidazole. As such this cascade reaction may find application in the synthesis of
[EN] NOVEL LACTAMS AND USES THEREOF<br/>[FR] NOUVEAUX LACTAMES ET LEURS UTILISATIONS
申请人:ASTRAZENECA AB
公开号:WO2004080983A1
公开(公告)日:2004-09-23
This invention relates to novel compounds having formula (I) to their pharmaceutical compositions and to their methods of use. These novel compounds inhibit secretase and thereby inhibit the production of amyloid ß protein, thereby acting to prevent the formation of neurological deposits of amyloid protein. The present invention relates to the treatment of neurological disorders related to amyloid ß - protein production such as Alzheimer's disease.
The present invention is directed to compounds that are antagonists of CGRP receptors and that are useful in the treatment or prevention of diseases in which the CGRP is involved, such as headache, migraine and cluster headache. The invention is also directed to pharmaceutical compositions comprising these compounds and the use of these compounds and compositions in the prevention or treatment of such diseases in which CGRP is involved.
The present invention is directed to compounds of Formula I: I (where A
1
, A
2
, B, J, K, m, n, R
4
, R
5a
, R
5b
and R
5c
are as defined herein) useful as antagonists of CGRP receptors and useful in the treatment or prevention of diseases in which the CORP is involved, such as headache, migraine and cluster headache. The invention is also directed to pharmaceutical compositions comprising these compounds and the use of these compounds and compositions in the prevention or treatment of such diseases in which CGRP is involved.
The present invention is directed to compounds that are antagonists of CGRP receptors and that are useful in the treatment or prevention of diseases in which the CGRP is involved, such as headache, migraine and cluster headache. The invention is also directed to pharmaceutical compositions comprising these compounds and the use of these compounds and compositions in the prevention or treatment of such diseases in which CGRP is involved.