๐”– Bobbio Scriptorium
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The synthesis of [14C]SK&F 97426A. A novel bile acid sequestrant

โœ Scribed by Kenneth W M Lawrie; Pravina Aggarawal; David Saunders


Book ID
102370305
Publisher
John Wiley and Sons
Year
1994
Tongue
French
Weight
361 KB
Volume
34
Category
Article
ISSN
0022-2135

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โœฆ Synopsis


Abstract

SK&F 97426A (10), a 1% crosslinked 11โ€trimethylammonioundecylmethacrylate chloride ethylene glycol dimethacrylate coโ€polymer bile acid sequestrant, has been prepared in two carbonโ€14 labelled forms, namely in the 1โ€position of the undecyl side chain and the pendant Nโ€methyl group. 11โ€Bromo[1โ€^14^C]undecyl methacrylate has been prepared and conditions developed for its small scale suspension polymerisation.


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14ClFormaldehyde was used in a nucleophile-assisted iminium ion cyclization with N-benzyl-3-butynylamine to provide N-benzyl-4-iodo-I ,2,5,6-tetrahydr0[2,6-1~C2]pyridine. Palladium-catalyzed coupling of this vinyl iodide with the organozinc derivative 2 gave the corresponding 4arylated tetrahydropyr