61086-05-3Relevant articles and documents
Piperidin-4-spiro-oxiranes
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, (2008/06/13)
STR1 Novel piperidin-4-spiro-oxiranes of formula (I) are provided which have application in the synthesis of various anilidopiperidine compounds. The novel compounds can be synthesised in a one pot reaction from 4-substituted piperidones and phenylsulphoxide or sulphone starting materials. Use of the novel compounds allows anilidopiperidines to be produced in a significantly reduced number of stages than with previously known methods.
N-(4-piperidinyl)-N-phenylamides and -carbamates
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, (2008/06/13)
Novel N-(4-piperidinyl)-N-phenylamides and -carbamates having very potent analgesic activity, methods of preparing same and useful intermediates therefor.