1-Acetyl-2a'-phenyl-4'-ethylspiro[indole-3,2'-[2a'H,5a'H]oxeto[5,4-b]oxazol]- 2(1H)-one and 1-acetyl-4',5a'-diphenylspiro[indole-3,2'-(2'H,5'H)oxeto[5,4-b]oxazol]-2(1H)- one
Authors of publication
Anwar Usman; Hoong-Kun Fun; Lei Wang; Yan Zhang; Jian-Hua Xu