Mibolerone | EPFL Graph Search

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Mibolerone, also known as dimethylnortestosterone (DMNT) and sold under the brand names Cheque Drops and Matenon, is a synthetic, orally active, and extremely potent anabolic–androgenic steroid (AAS) and a 17α-alkylated nandrolone (19-nortestosterone) derivative which was marketed by Upjohn for use as a veterinary drug. It was indicated specifically as an oral treatment for prevention of estrus (heat) in adult female dogs. Anabolic steroid#Adverse effects Mibolerone has both higher affinity and greater selectivity for the androgen receptor (AR) than does the related potent AAS metribolone (17α-methyl-19-nor-δ9,11-testosterone), although potent and significant progestogenic activity remains present. However, another study found that mibolerone and metribolone had similar affinity for the progesterone receptor (PR) but that mibolerone only had around half the affinity of metribolone for the AR. List of androgens/anabolic steroids Mibolerone, also known as 7α,17α-dimethyl-19-nortestosterone (DMNT) or as 7α,17α-dimethylestr-4-en-17β-ol-3-one, is a synthetic estrane steroid and a 17α-alkylated derivative of nandrolone (19-nortestosterone). It is the 17α-methyl derivative of trestolone (7α-methyl-19-nortestosterone; MENT). Other related AAS include metribolone (17α-methyl-δ9,11-19-nortestosterone) and dimethyltrienolone (7α,17α-dimethyl-δ9,11-19-nortestosterone). Nandrolone (1) appears to be used to make mibolerone. For comparison, also see bolasterone and calusterone. The first step involves extending the conjugation of the enone function by an additional double bond. Chloranil (tetrachloroquinone) is the forerunner of dichlorodicyanoquinone (DDQ), a reagent used extensively for introducing additional unsaturation in the progestin and corticoid series. In the case at hand, heating acetate (1) with chloranil gives the conjugated dienone (2), and reaction of that compound with methylmagnesium bromide in the presence of cuprous chloride leads to addition of the methyl group to position 7 at the end of the conjugated system (3).

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Related concepts (6)

Metribolone

Metribolone (developmental code R1881, also known as methyltrienolone) is a synthetic and orally active anabolic–androgenic steroid (AAS) and a 17α-alkylated nandrolone (19-nortestosterone) derivative which was never marketed for medical use but has been widely used in scientific research as a hot ligand in androgen receptor (AR) ligand binding assays (LBAs) and as a photoaffinity label for the AR. More precisely, metribolone is the 17α-methylated derivative of trenbolone.

Anabolic steroid

Anabolic steroids, also known as anabolic-androgenic steroids (AAS), are synthetic substances that mimic the effects of testosterone, the male sex hormone. They are used to increase muscle size, strength, and performance and are commonly associated with athletic performance enhancement and bodybuilding. Anabolic steroids are classified as Schedule III controlled substances in many countries due to their potential for abuse and adverse health effects. Health risks can be produced by long-term use or excessive doses of AAS.

Dimethyltrienolone

Dimethyltrienolone (developmental code name RU-2420) is a synthetic, orally active, and extremely potent anabolic–androgenic steroid (AAS) and 17α-alkylated 19-nortestosterone (nandrolone) derivative which was never marketed for medical use. It has among the highest known affinity of any AAS for the androgen (and progesterone) receptors, and has been said to be perhaps the most potent AAS to have ever been developed. Dimethyltrienolone is an extremely potent agonist of the androgen and progesterone receptors and hence AAS and progestogen.