ethyl 2,2-dimethyl-3-oxopentanoate

1-(4-nitrophenyl)pent-1-en-3-one

2-(8-chloro-1-ethyl-4,9-dihydro-3H-pyrano[3,4-b]indol-1-yl)acetic acid

1-乙基-1,3,4,9-四氢吡喃并[3,4-b]吲哚-1-乙酸

1-乙基-1,3,4,9-四氢-8-甲基吡喃并[3,4-b]吲哚-1-乙酸