(αS,5S)-7-[4-(二甲基氨基)-4-甲基-1-氧代-2-戊炔-1-基]-N-[(3R,9S,15S)-2-乙基-2,4,5,6,9,10,11,12,15,16-十氢-3-[2-[(1S)-1-甲氧基乙基]-3-吡啶基]-5,5-二甲基-8,14-二氧代-8H,14H-1,22-乙桥-9,13-亚氨基-17,21-甲桥吡咯并[3,4-r][1,7]氧杂环二十二烷-15-基]-α-(1-甲基乙基)-1-氧代-2,7-二氮杂螺[4.4]壬烷-2-乙酰胺

(αS,5S)-7-[4-(Dimethylamino)-4-methyl-1-oxo-2-pentyn-1-yl]-N-[(3R,9S,15S)-2-ethyl-2,4,5,6,9,10,11,12,15,16-decahydro-3-[2-[(1S)-1-methoxyethyl]-3-pyridinyl]-5,5-dimethyl-8,14-dioxo-8H,14H-1,22-etheno-9,13-imino-17,21-methenopyrrolo[3,4-r][1,7]oxaazacyclodocosin-15-yl]-α-(1-methylethyl)-1-oxo-2,7-diazaspiro[4.4]nonane-2-acetamide