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| | 5.alpha.-Androstan-3-one, 17.beta.-hydroxy-2-(hydroxymethylene)- Basic information |
| | 5.alpha.-Androstan-3-one, 17.beta.-hydroxy-2-(hydroxymethylene)- Chemical Properties |
| Melting point | 118-121 °C | | Boiling point | 464.735±45.00 °C(Press: 760.00 Torr)(predicted) | | density | 1.198±0.06 g/cm3(Temp: 25 °C; Press: 760 Torr)(predicted) | | pka | 5.278±0.70(predicted) |
| | 5.alpha.-Androstan-3-one, 17.beta.-hydroxy-2-(hydroxymethylene)- Usage And Synthesis |
| Uses | 4,5a-Dihydro-2-(hydroxymethylene)testosterone is an urinary metabolite of stanozolol (S684500). | | Definition | ChEBI: 4,5alpha-Dihydro-2-(hydroxymethylene)testosterone is a 3-oxo-5alpha-steroid. | | Synthesis | 4,5α-dihydro-2-(hydroxymethylene)testosterone (oxystanolone) is obtained by reacting 2-Hydroxymethylene-androstan-17β-((tetrahydro-2H-pyran-2-yl)oxy)-3-one with pyridinium tosylate.
Procedure: To a solution of 0.95 g intermediate (2) in 55 ml of the solvent mixture
tetrahydrofuran/methanol/water 7:2:1 pyridinium tosylate (1.15 g dissolved in 20 ml
tetrahydrofuran/methanol/water 7:2:1) was added at room temperature. Subsequently, this was
followed by 8 h stirring at 50°C. Monitoring via TLC still shows remaining starting material.
After evaporation of all solvents, the crude product was chromatographed on silica gel by using
hexane-ethyl acetate (8:2). 0.385 g of 5 was obtained as a colorless solid (52%). |
| | 5.alpha.-Androstan-3-one, 17.beta.-hydroxy-2-(hydroxymethylene)- Preparation Products And Raw materials |
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