Substituted piperidine intermediates for producing...

Details Substituted piperidine intermediates for producing... Substituted piperidine intermediates for producing...

C - Chemistry, Metallurgy

07

D

C07D 211/18 (2006.01) C07D 211/36 (2006.01)

Patent

CA 2195129

Disclosed is a compound of the formula (See formula I) wherein W is a leaving group; j is an integer from 0 to 2; R10 is a nitrogen protecting group; and R7 and R8 are independently selected from hydrogen, (C1-C6)alkyl, (C1-C6)alkoxycarbonyl, (C1-C6)alkylcarbonyl and (C1-C6)alkoxy, with the proviso that said (C1-C6)alkoxy is not attached to a carbon that is adjacent to a nitrogen. This compound is useful as an intermediate for producing a compound of the formula: (See formula II) in which R1 and R2 are hydrogen, alkoxy, benzyloxy, phenoxy, hydroxy, etc., X is a divalent group such as O, S, etc., Y is a divalent group such as alkylene, M is CH or N, and L is phenyl, phenylalkyl, cinnamyl, pyridylmethyl etc. The compound of the formula (I) is capable of inhibiting cholinesterase and may be useful in a pharmaceutical composition.

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