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Pregn-4-ene-3, 20-dione

PEROXIDES AND PEROXIDE COMPOUNDS - ORGANIC PEROXIDES] (Vol 18) llb,21-Dihydroxy-17-(l-oxobutoxy)-pregn-4-ene-3,20-dione. See Hydrocortisone butyrate. [Pg.317]

In contrast to this, hydrolysis of 17a,20 20,21-bismethylenedioxy-19-nor-9y ,10a-pregn-4-en-3-one using aqueous 90% formic acid at reflux temperature for 3 min gives an overall yield of 17a,21-dihydroxy-19-nor-9, 10a-pregn-4-ene-3,20-dione 21-formate of 12%. [Pg.411]

A solution of 0.38 g of the diazoketone in 2 ml of acetic acid is heated 0.5 hr at 100-105°. Removal of the solvent under reduced pressure and crystallization of the residue from acetone-ether gives 0.27 g of 1 la,21-dihydroxy-pregn-4-ene-3,20-dione 11,21-diacetate mp, 144-146° [a]o 156° (CHCI3). An additional 60 mg of this product is obtained by chromatography of the mother liquor (total yield 72%). [Pg.203]

Acetoxy-16/3-m ethyl-16a, 17 a-oxido-pregn-4-ene-3,20-dione, 225 3 -Acetoxy-16-methy lpregna-5,16-dien-20-one, 106... [Pg.455]

Chemical Name 16,17-[(1-Phenylethylidene)bis(oxy)] pregn-4-ene-3,20-dione Common Name l6a,17a-Dihydroxyprogesterone acetophenide alphasone acetophenide Structural Formula ... [Pg.39]

Chemical Name 9-fluoro-11/3,17,21-trihydroxy-pregn-4-ene-3,20-dione acetate Common Name —... [Pg.658]

CN (llp)-l l,17-dihydroxy-21-[[[[l-(phenylmethyl)-lH-indazol-3-yl]oxy]acetyl]oxy]pregn-4-ene-3,20-dione... [Pg.191]

CN (11 (3,16a)-21 -chloro-9-fluoro-11 -hydroxy-16,17-[( 1 -methylethylidene)bis(oxy)]pregn-4-ene-3,20-dione... [Pg.992]

Halcinonide is the United States adopted name- (USAN). The preferred chemical names are 21-chloro-9-fluoro-116-hydroxy-16a, 17-[(l-methylethylidene)bis(oxy)]pregn-4-ene-3, 20-dione, and 21-chloro-9a-fluoro-118-16a,17-trihydroxypregn-4 -ene-3,20-dione cyclic 16,17-acetal with acetone. Other chemical names are 21-chloro-9-fluoro-118-hydroxy-16a,17a-isopropyl-idenedioxy-4-pregnene-3,20-dione, 9a-fluoro-21-chloro-HB, 16a, 17a-trihydroxypregn-4-ene-3, 20-dione 16,17 acetonide and 21-chloro-9-fluoro-116,16a,17-trihydroxypregn-4-ene-3,20-dione cyclic 16,17-acetal with acetone. [Pg.252]

See other pages where Pregn-4-ene-3, 20-dione is mentioned: [Pg.8]    [Pg.199]    [Pg.317]    [Pg.413]    [Pg.95]    [Pg.541]    [Pg.541]    [Pg.410]    [Pg.411]    [Pg.438]    [Pg.376]    [Pg.787]    [Pg.313]    [Pg.313]    [Pg.314]    [Pg.314]    [Pg.60]    [Pg.600]    [Pg.879]    [Pg.882]    [Pg.1025]    [Pg.1561]    [Pg.1721]    [Pg.2286]    [Pg.2286]    [Pg.2308]    [Pg.2308]    [Pg.2308]    [Pg.2371]    [Pg.2386]    [Pg.261]    [Pg.490]    [Pg.490]    [Pg.490]   
See also in sourсe #XX -- [ Pg.664 ]



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