Synthesis of purines under possible primitive earth conditions. I. Adenine from hydrogen cyanide.
D000225:Adenine / Q000737:chemistry*; D018534:Earth, Planet; D006856:Hydrogen Cyanide / Q000737:chemistry*; D011687:Purines
D011687:Purines; D006856:Hydrogen Cyanide; D000225:Adenine; C030985:purine
ADENINE/chemistry; HYDROCYANIC ACID/chemistry