Begin with a benzene ring numbered so that its major substituent is at carbon 1. Methyl groups are positioned at carbons 2 and 4.

At carbon 1, attach an aromatic five-membered ring containing two nitrogens (a 1,3-diazole, imidazole-type structure). Label the atoms in the diazole ring as follows:
	- Diazole C1: The carbon bonded to benzene carbon 1.
	- Diazole N2: The first nitrogen moving clockwise.
	- Diazole C3: This carbon carries an ethyl (-CH2CH3) substituent.
	- Diazole N4: This nitrogen bears an allyl (-CH2CH=CH2) substituent.
	- Diazole C5: This carbon carries an amino (-NH2) substituent.

The ring closes back at Diazole C1, completing the attachment to benzene carbon 1.