<unk> , also known as 17α-methyltestosterone or as 17α-methylandrost-4-en-17β-ol-3-one, is a synthetic, 17α-alkylated androstane steroid and a derivative of testosterone differing from it only in the presence of a<unk> hyl group at the C17α position. Close synthetic relatives of<unk>  include<unk> andienone (17α-methyl-δ1-testosterone) and fluoxymesterone (9α-fluoro-11β-hydroxy-17α-methyltestosterone). Derivatives<unk>  and<unk>  (17α-ethyltestosterone) are the parent structures of all 17α-alkylated AAS. Major 17α-alkylated AAS include the testosterone derivatives fluoxymesterone,<unk> andienone <unk> handrostenolone), and<unk>  and the DHT derivatives oxandrolone, oxymetholone, and stanozolol. Synthesis A chemical synthesis of<unk>  from dehydroepiandrosterone (DHEA) with<unk> handriol as an intermediate proceeds as follows: left
Methyltestosterone
Allyltestosterone
Dihydrotestosterone
Luteinizing hormone
Androgen
Methylestradiol
Methyl-1-testosterone
Progestogen 