Vinazone, Heidentwin, and Barbethoric acid. The hydrogen atom in the pyramidine ring of the Barburic acid and replaced with alkyl

Vinazone, Heidentuin, and Barbethoric acid are products characterized by variable ring molding. Derivatives of these products are indicated in their sub-items due to the original base composition of these compounds. When compared to original vehicles. These derivatives generally include:
It has the functions of groups (such as the uncoated).
B) Retains the number and location of the double links.
C) Retains alternatives (eg vinyl group and methyl groups for fenazone).
(D) have additional alternatives to the hydrogen atom only (such as the hydrogen atom in the pyramidine ring of the barbituric acid and replaced with the alkyl group).
However, the salts obtained from the inol from the original compounds are considered to be Quito derivatives.
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