ethyl 2-acetyl-3-methyl-4-oxopentanoate

7-methoxy-2,3-dimethyl-1H-indole

3-氧代-2-丁炔基硫氰酸酯

顺式-2,3-二甲基噻丙环

(5S)-2-oxy-4t-(tri-O-benzoyl-β-D-ribofuranosyl)-4,5-dihydro-isoxazole-3,5r-dicarboxylic acid dimethyl ester