3beta,26-二羟基-16,23-环胆甾-5,16(23)-二烯-22-酮

2,4-diethoxy-6-methylpyrimidine

3,4,6,7,12,12b-hexahydro-1H-indolo[2,3-a]quinolizin-2-one

2-chloro-N-(2,2-diethoxyethyl)acetamide

ethyl 2-phenylselanylacetate