Synthesis of methylenetetrahydrofolic acid analogs.
D000630:Aminopterin / Q000494:pharmacology; D002625:Chemistry, Organic; D004798:Enzymes / Q000494:pharmacology*; D007093:Imidazoles / Q000494:pharmacology*; D009711:Nucleotides / Q000096:biosynthesis; D055601:Organic Chemistry Phenomena; D011719:Pyrazines / Q000494:pharmacology*
D004798:Enzymes; D007093:Imidazoles; D009711:Nucleotides; D011719:Pyrazines; D000630:Aminopterin