1. R. R. Akhmetvaleev, L. R. Imaeva, and M. S. Miftakhov,Zh. Org. Khim.,33(9), 1343–1344 (1997).
2. P. W. Collins, E. Z. Dajani, D. R. Drickill, et al.,Tetrahedron Lett., 4217–4219 (1975).
3. P. W. Collins, E. Z. Dajani, D. R. Drickill, et al.,J. Med. Chem.,25, 1152–1157 (1977).
4. P. W. Collins,Med. Res. Rev.,10, 149–154 (1990).
5. R. Pappo, P. W. Collins, M. S. Bruhn, et al., in:Chemistry, Biochemistry, and Pharmacological Activity of Prostaglandins, S. M. Roberts and F. Scheineman, (eds.), Pergamon Press, New York (1979), pp. 17–26.