Based on the results obtained in the raceniic series (part I ) , ( -)-17P-hydroxy-des-A-androst-9-en-5-one has been synthesized, starting with (S)-( -)-5-heptanolide. The key step, viz. the condensation of ( S ) -( -)-7-hydroxy-l-nonen-3-one (or its amine adduct) with 2-methyl-cycIopentane-l,3-dione
The total syntheses of 17β-hydroxy-des-a-androst-9-ene-5-one and 17β-hydroxy-10α-des-a-androstan-5-one
✍ Scribed by D.K. Banerjee; P.S.N. Murthy; V. Paul
- Publisher
- Elsevier Science
- Year
- 1967
- Tongue
- French
- Weight
- 120 KB
- Volume
- 8
- Category
- Article
- ISSN
- 0040-4039
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✦ Synopsis
SYRTHESES of S-isotestosterone and the corresponding antbracene analogue using trsns-Q-hydroxy-S-methyl-%+ -(3'-methyl-+'-methorybenzo)-hydradane (I) were earlier 1 reported . The present corununicatlon describes the preparatlon of 178-hydroxp-des-A-androst-9-ene-Gone (IIR=OH) and
📜 SIMILAR VOLUMES
A two-level library of 313-amido-3t~-hydroxy-5ct-androstane-17-one compounds was synthesized from a steroid precursor using the solution-phase parallel s),nthesis. The compounds were easily obtained in high purity by regioselective aminolysis of the oxwane intermediate followed by aeylation of the a
Catalytic reduction of 3j3-hydroxyandrost-4-ene-l7-one (I) with tritium gas gave a mixture of 3B-hydroxy-5a-androstane-17-one (11) and 3~-hydroxy-5cc-androstane-l7-one ( 1 1 1 ) . Oxidation of compound 1 1 followed by alkaline equilibration resulted in 37 % loss of label from position 4. 5a-Androsta
A Solution-Phase Combinatorial Parallel Synthesis of 3β-Amido-3α-hydroxy-5α-androstane-17-ones. -A two-level library of title compounds (IV) is prepared via reaction of oxirane (I) with 4 primary amines followed by treatment of each set with 4 aliphatic acyl chlorides. The purities of the products