A new and efficient N-alkylation procedure for semicarbazides/semicarbazones derivatives
摘要:
An easy to perform and regioselective synthesis of N-alkyl hydrazones/hydrazides is described, which uses an aprotic medium with kinetic control. This procedure produced the desired monoalkylated or dialkylated amines with excellent yields and selectivities. (C) 2007 Published by Elsevier Ltd.
This invention relates to compounds that are agonists of the muscarinic M1 receptor and/or M4 receptor and which are useful in the treatment of muscarinic M1/M4 receptor mediated diseases. Also provided are pharmaceutical compositions containing the compounds and the therapeutic uses of the compounds. Compounds include those according to formula 1, or a salt thereof, wherein Q, R
1
, R
2
, R
3
and R
4
are as defined herein.