2,6-二氨基-9H-嘌呤-8-醇

[1,2,5]thiadiazolo[3,4-d]pyrimidine-5,7-diamine

8-(trifluoromethyl)-7H-purine-2,6-diamine

4-[1-(2,4-diaminopteridin-6-yl)propan-2-yl]benzoic acid

4-[1-(2,4-diaminopteridin-6-yl)butan-2-yl]benzoic acid