Megestrol acetate
English
Synonyms:17-(acetyloxy)-6-methylpregna-4,6-diene-3,20-dione;17-Acetoxy-6-methylpregna-4,6-diene-3,20-dione;17-alpha-acetoxy-6-dehydro-6-methylprogesterone;17alpha-Acetoxy-6-dehydro-6-methylprogesterone;17-Hydroxy-6-methylpregna-4,6-diene-3,20-dione17-acetate;5071;6-dehydro-6-methyl-17-alpha-acetoxyprogesterone;6-Dehydro-6-methyl-17alpha-acetoxyprogesterone
CAS:595-33-5
EINECS:209-864-5
MF:C24H32O4
MW:384.51
Purity: 96.0%
Melting point of: 214 ° C
The refractive index of :11 ° (C = 2, CHCl3)
Storage conditions :Refrigerator
Chemical properties : white or slightly yellow crystalline powder (methanol), odorless and tasteless. Melting point 214-216 ℃. Soluble in acetone, slightly soluble in alcohol, ether, insoluble in
water.
Use of medroxyprogesterone acetate (MPA) intermediates.
Production methods available 16,17 α-epoxy ring opening of progesterone by hydrogen bromide and nickel-catalyzed reductive debromination produce 17α-hydroxy-progesterone, and then generate
17α-acetoxy progesterone by acetylation and acid hydrolysis, and then the original triethylorthoformate and Vilsmeier etherification reaction to give 3 - ethoxy-6 - formyl-acetoxy-17α-pregna-2, 5 -
diene-20 - one, and finally potassium borohydride reduction, acid hydrolysis, dehydration and translocation in the goods.