Download full text in PDF Opens in a new window. Article suggestions will be shown in a dialog on return to ScienceDirect. ... Please enable JavaScript to use all the features on this page. ... The remarkable transformation of endo-3-bromo-4-methylcamphor (9) to endo-3,9-dibromo-4 -(bromomethyl)camphor (11) forms the basis of a new approach to intermediates for the synthesis of lanostane triterpenoids, euphane triterpenoids and 14α-methyl steroids.