2.
(2S,3S,4R,4a'R,5R,5a'R,11a'R,12′S,12a'R)-5-(Acet-oxy-meth-yl)-2′,2′,10′,10′-tetra-methyl-octa-hydro-3H,8′H-spiro-[furan-2,7′-[1,3]dioxino[4′,5′:5,6]pyrano[3,2-d][1,3,6]trioxocine]-3,4,12′-triyl tri-acetate
机译:(2s,3s,4r,4a'r,5r,5a'r,11a'r,12,12a'r)-5-(acex-oxy-meth-yl)-2',2',10' ,10'-四甲基 - octa-hydro-3h,8'h-sporo- [呋喃-2,7' - [1,3] Dioxino [4',5':5,6]吡喃[3,2 -d] [1,3,6]三胞嘧啶] -3,4,12'-三乙酸三乙酸酯