62319-13-5Relevant articles and documents
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Patterson,Loudon
, p. 1725,1739,1740 (1932)
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An improved synthesis of 10-isobornylsultone
Lewis, Frank W.,Grayson, David H.
, p. 1150 - 1152 (2014/09/29)
A modified and improved synthesis of 10-isobornylsultone in three steps and in 81% overall yield starting from (+)-camphor-10-sulfonic acid is described. The synthesis proceeds via methyl sulfonate ester formation, stereoselective reduction and base-catalysed intramolecular cyclisation.
SALTS OF TIOTROPIUM WITH 10-CAMPHORSULFONIC ACID
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Page/Page column 16-17, (2010/12/18)
The present invention relates to novel tiotropium salts with 10-camphorsulphonic acid of formula (I), its optical isomers or their mixtures, their monohydrates, their anhydrous crystalline forms and processes for the preparation thereof, as well as to pharmaceutical compositions containing the same and to the use of novel salts for the treatment of respiratory tract diseases. (I)