5-二甲基氨基-2-羟基-3-甲氧基苯甲醛

3'-ethyl-8'-methoxy-3-methyl-6'-nitrospiro[1,3-thiazolidine-2,2'-chromene]

8'-methoxy-3,3',5,6,6-pentamethyl-6'-nitrospiro[1,3-thiazinane-2,2'-chromene]

5-tert-butyl-8'-methoxy-3-methyl-6'-nitro-3'-propan-2-ylspiro[1,3-thiazolidine-2,2'-chromene]

8'-methoxy-3,3',5-trimethyl-6'-nitrospiro[1,3-oxazolidine-2,2'-chromene]