Novak J.J.K. et al // Collection of Czechoslovak Chemical Communications (1971), 36(11), 3670-7. STN ON THE WEB, БД CA; AN 142:94041; RN 815626-17-6. STN ON THE WEB, БД CA; AN 121:256130; RN 141407-05-8. Masahiro Murakami et al // Chemistry Letters, pp.1271-1274, 1982. STN ON THE WEB, БД CA; AN 140:2710950; RN 672952-48-6. STN ON THE WEB, БД CA; AN128:133710; RN 198965-17-2. STN ON THE WEB, БД CA; AN 126:7855; RN 139619-13-9. STN ON THE WEB, БД CA; AN 116:1514510; RN 139619-13-9 и RN 139619-14-0. STN ON THE WEB, БД CA; AN 116:1511100; RN 139400-32-1, 139492-36-7, 139492-37-8. STN ON THE WEB, БД CA; AN 104:110074; RN 100741-05-7, 100741-06-8. STN ON THE WEB, БД CA; AN 103:1051930; RN 97462-06-1, 97462-07-2. STN ON THE WEB, БД CA; AN 100:519280; RN 88302-91-4, 88302-92-5. STN ON THE WEB, БД CA; AN 98:16953; RN 83483-93-6. STN ON THE WEB, БД CA; AN 97:163381; RN 83237-09-6. US 5391769 A, 21.02.1995. SU 415260 Al, 15.02.1974.