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Utilization of precursor steroids in placental progesterone* * The trivial names used throughout this paper are: progesterone=preg-4-ene-3, 20-dione; pregnenolone=3β-hydroxy-pregn-5-en-20-one; cholesterol=cholest-5-en-3β-ol; 20α-dihydroprogesterone=20α-hydroxy-pregn-4-en-3-one; 20β-dihydroprogesterone=20β-hydroxy-pregn-4-en-3-one; 20β-dihydropregnenolone=pregn-5-ene-3β, 20β-diol; 20α-dihydropregnenolone=pregn-5-ene-3β, 20a-diol; pregnenolone sulfate=pregn-5-ene-3β-yl sulfate; cholesterol sulfate=cholest-5-en-3β-yl sulfate; 20β-pregnenolone sulfate=20β-hydroxypregn-5-en-3β-yl sulfate; 20α-dihydroprogesterone sulfate=pregn-4-ene-3-one-20α-yl sulfate. synthesis |
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