What's up folks?! I just found a long forgotten patent on my hardrive, and thought some of you might be interested. The precursors are probably a bitch to make, but the finished product isn't controlled.
Anaesthetic Agents - GB766870
"The present invention is an improvement in or modification of the invention of Application No 34943/53 (Serial No 764,958), and provides a process for the manufacture of anaesthetic agents possessing outstanding properties by building up, according to methods known per se, compounds of the general formula:NH.CO-a O Ikylene-N, C-X (wherein X is a halogen substituent, the naphthalene nucleus may contain further substituents or may be hydrogenated in 54-6-7-8-positions, R is hydrogen, alkyl, aralkyl or cycloalkyl, RI alkyl, aralkyl or cycloalkyl and the alkyl residues, if present, may be linked to each other directly or by means of a hetero atom) and converting these compounds into their salts or quaternary ammonium compounds."
http://l2.espacenet.com/espacenet/viewer?PN=GB766870&CY=gb&LG=en&DB=EPD (http://l2.espacenet.com/espacenet/viewer?PN=GB766870&CY=gb&LG=en&DB=EPD)
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