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Altrenogest

pharmaceutical raw materials
Altrenogest structure

Altrenogest 

structure
  • CAS No:

    850-52-2

  • Formula:

    C21H26O2

  • Chemical Name:

    Altrenogest

  • Synonyms:

    Estra-4,9,11-trien-3-one,17-hydroxy-17-(2-propen-1-yl)-,(17β)-;Estra-4,9,11-trien-3-one,17α-allyl-17-hydroxy-;Estra-4,9,11-trien-3-one,17-hydroxy-17-(2-propenyl)-,(17β)-;(17β)-17-Hydroxy-17-(2-propen-1-yl)estra-4,9,11-trien-3-one;DRC 6246;Allyltrenbolone;R 2267;RU 2267;Altrenogest;Regumate;A 35957;Matrix;Matrix (progestogen)

  • Categories:

    Biochemical Engineering  >  Inhibitors

Description

Altrenogest(A35957; RU2267) is a progestogen structurally related to veterinary steroid trenbolone.Target: Progesterone ReceptorAltrenogest is a progestogen structurally related to veterinary steroid trenbolone. Treatment of embryo-recipient mares with altrenogest appears to be beneficial in extending the degree of donor-recipient synchrony required for successful embryo transfer. Altrenogest treatment also seems to be conductive to pregnancy maintenance in recipients experiencing luteal

Altrenogest Basic Attributes

310.43

310.43

212-703-1

2937290090

Characteristics

37.3

4.27560

Slightly yellow powder

1.1±0.1 g/cm3

120 °C

495.6°C at 760 mmHg

210.1±21.3 °C

1.594

0-6°C

Flammable; burning produces irritating fumes

D20 -72° (c = 0.5 in ethanol)

Safety Information

3

KG7745000

Treasury is ventilated, low temperature and dry; stored separately from food materials

Altrenogest Use and Manufacturing

Methods of Manufacturing

In a 2L reactor, 500 g of triene (4, 9, 11-triene-3, 17-dione) was added at 10 ° C, use 500 g of ethylene glycol dissolved, And 34 g of HC1 gas was added, The temperature was raised to 60 ° C for 10 h, To the room temperature, the solvent is distilled off. Add 2.5L tetrahydrofuran, cool to below _0 ° C, Slowly drop the newly prepared 187mL allyl magnesium bromide diethyl ether (lmol / L) in the reactor, 3h drop finished, rose to 60 ° C reaction 3h, down to -10 ° C below, 200 mL of water and 200 mL of concentrated hydrochloric acid were added dropwise, Adjust ΡΗ = 1-3, Heating up to 60 ° C, Stirring 5h, Separate the upper, Dried over anhydrous sodium sulfate, The solvent was concentrated to 100 mL, Placed below 5 ° C frozen, Slowly Crystalline Tetraenetrienone crude, ethyl acetate recrystallized about 375g tetraenual estrone. Yield 65percent.In a 21-reactor, At 25 ° (adding 50 (triphenylene) to 4, 9, 11-triene-3, 17-dione) With 50081 ethylene glycol dissolved, And 68 g of HC1 gas was added, The temperature was raised to 60 ° C for 10 h, Down to room temperature, The solvent is distilled off. 4 L of tetrahydrofuran was added, Down to below _0 ° C, Slowly drop the freshly prepared 374 mL allyl magnesium chloride diethyl ether (lmol / L) in a reaction kettle, 3h drops finished, Rose to 50 reactions 2h, Down to below 10 ° C, 200 mL of water and 200 mL of concentrated hydrochloric acid were added dropwise, Adjust ΡΗ = 1-3, Heating up to 60 ° C, Stirring 5h, Separate the upper, Dried over anhydrous sodium sulfate, The solvent was concentrated to 100 mL, Put 5 ° C below the frozen, slow crystallization of tetracene estrone crude, Ethyl acetate was recrystallized to about 347 g tetraenual estrone. Yield 60percent.

Uses

antineoplastic

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