| pregnene |
a term used in steroid hormone nomenclature to refer to an unsaturated 21-carbon structure with one double bond and three methyl groups; the δ4 and δ5 pregnene steroid nucleus forms the basis of most of the biologically active progestins and corticosteroids.
출처: www.mercksource.com/pp/us/cns/cns_health_library.j...
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