cyclosporin A 、
di[2-(N-methyl-N-t-butylamino)ethyl] disulphide 在
sodium amide 作用下,
以
四氢呋喃 、
氨 为溶剂,
以5%的产率得到(3S,6S,9S,12R,15S,18S,21S,24S,27R,30S,33S)-27-[2-[tert-butyl(methyl)amino]ethylsulfanyl]-30-ethyl-33-[(E,1R,2R)-1-hydroxy-2-methyl-hex-4-enyl]-6,9,18,24-tetraisobutyl-3,21-diisopropyl-1,4,7,10,12,15,19,25,28-nonamethyl-1,4,7,10,13,16,19,22,25,28,31-undecazacyclotritriacontane-2,5,8,11,14,17,20,23,26,29,32-undecone