cyclo-(L-2-aminobutanoyl-L-phenylalanyl) 在
二甲基亚砜 作用下,
生成 (1R,7S,8S,11R)-11-ethyl-7-hydroxy-15-methyl-12,13-dithia-9,15-diazatetracyclo[9.2.2.01,9.03,8]pentadeca-3,5-diene-10,14-dione 、 cis-3-benzyl-6-ethyl-3,6-bis(methylthio)piperazine-2,5-dione 、 (3R,5aS,6S,10aR)-3-Ethyl-6-hydroxy-2-methyl-3,10a-bis-methylsulfanyl-2,3,5a,6,10,10a-hexahydro-pyrazino[1,2-a]indole-1,4-dione