Upadhya, K. G., Sanghvi, Y. S., Robins, R. K., Revankar, G. R., & Ugarkar, B. G. (1986). Synthesis of 5-chloroformycin A, 5-chloro-2'-deoxyformycin A and certain related 5,7-disubstituted 3-beta-D-ribofuranosylpyrazolo[4,3-d] pyrimidines from formycin A.

Upadhya, K G., Y S. Sanghvi, R K. Robins, G R. Revankar, e B G. Ugarkar. Synthesis of 5-chloroformycin A, 5-chloro-2'-deoxyformycin A and Certain Related 5,7-disubstituted 3-beta-D-ribofuranosylpyrazolo[4,3-d] Pyrimidines From Formycin A. 1986.

Upadhya, K G., et al. Synthesis of 5-chloroformycin A, 5-chloro-2'-deoxyformycin A and Certain Related 5,7-disubstituted 3-beta-D-ribofuranosylpyrazolo[4,3-d] Pyrimidines From Formycin A. 1986.