Synthesis of sulfur-containing dehydrodesthiobiotin derivatives

Conclusions The reduction of the ethyl esters of- and'-oxodehydrodesthiobiotin with sodium borohydride, and subsequent treatment of the intermediate hydroxy esters with thioacetic acid, gave the ethyl esters of- and'- (aceitylmercapto)dehydrodesthiobiotin.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 11, pp. 2626–2627, November, 1973.We express our gratitude to V. V. Filippov for running the biological tests on (V), (VI) and (XI).