氢氰酸

2-氯-3-氧代戊基乙酸酯

1,8-二氨基萘

rac-9-(1'-ethoxycarbonyl-2'-phenyl-2'-oxoeth-1'-yl)xanthene

rac-9-(1'-ethoxycarbonyl-2'-oxoprop-1'-yl)xanthene