cas 474-86-2, EQUILIN | Articles data ｜lookchem

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474-86-2

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Method for synthesizing equilin
The invention relates to a synthesis method of a steroid drug, namely equilin. The method comprises the following steps: starting from estrone, performing phenolic hydroxyl group and C17-position ketal protection, and then performing oxidation and further dehydrogenation to obtain an intermediate II; reducing and deoxidizing the intermediate II to obtain an intermediate III; and finally, performing deprotection to obtain a final product, namely an equilin bulk drug. The method is few in steps and comprises four conversion steps; total yield is as high as 50%; the used raw materials are relatively cheap and easy to obtain; the whole process route is green and safe; and the bulk drug is high in quality, has purity of 99.8% or above, and is suitable for industrial production.
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Paragraph 0014; 0022

(2021/05/26)

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Chemical Properties

Appearance/Colour :plate powder, soluble in alcohol, acetone, sparingly soluble in water.
Melting Point: 238-240 °C(lit.)
Boiling Point: 459.1 °C at 760 mmHg
Flash Point:195.4 °C
Density: 1.22 g/cm³
Storage Temp.:Refrigerator
Vapor Pressure: 0mmHg at 25°C
Refractive Index: 1.4800 (estimate)
PKA: pKa 10.26±0.04(H2O t=23±2) (Uncertain)
Merck: 13,3672
BRN: 2624302
PSA: 37.30000
LogP: 3.73750

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