[Tetronic acid derivatives. 3. The effects of substitution in the tetronic acid derivatives].
D000632:Aminopyrine; D005663:Furans; D011687:Purines
D005663:Furans; D011687:Purines; D000632:Aminopyrine; C003422:tetronic acid; C030985:purine
AMINOPYRINE; PURINES