As a basis for the synthesis of I we used the method of mixed anhydrides, developed for the preparation of D-pantethine [6] and its S-acyl derivatives [5] and consisting in the condensation of the mixed anhydrideof D-pantothenic and carboxyllc acids (III) with
[Bulat, a. D.; Grishin, V. V.; Kuznetsova, T. E.; Nekrasov, S. V.; Passet, B. V. Pharmaceutical Chemistry Journal, 1990 , vol. 24, # 5 p. 376 - 378 Khimiko-Farmatsevticheskii Zhurnal, 1990 , vol. 24, # 5 p. 57 - 59]
