1231-93-2

Usage

Uses

Ethynodiol is a steroidal progestin that inhibits luciferase expression.

InChI:InChI=1/C20H28O2/c1-3-20(22)11-9-18-17-6-4-13-12-14(21)5-7-15(13)16(17)8-10-19(18,20)2/h1,12,14-18,21-22H,4-11H2,2H3/t14-,15-,16+,17+,18-,19-,20-/m0/s1

Upstream product

• 68-22-4 norethisterone 
• 15396-48-2 (3S,8R,9S,10R,13S,14S)-3-Hydroxy-13-methyl-1,2,3,6,7,8,9,10,11,12,13,14,15,16-tetradecahydro-cyclopenta[a]phenanthren-17-one 
• 70277-75-7 lithium acetylide 
• 17006-19-8 Acetic acid (8R,9S,13S,14S)-17-cyano-13-methyl-3-oxo-2,3,4,6,7,8,9,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl ester 
• 17006-11-0 Acetic acid (8R,9S,10R,13S,14S)-17-cyano-13-methyl-3-oxo-2,3,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl ester 
• 734-32-7 estra-4-ene-3,17-dione 

Downstream Products

• 24193-70-2 17β-hydroxy-17α-(3-phenyl-isoxazol-5-yl)-estr-4-en-3-one 
• 51267-64-2 4α,5-epoxy-17-hydroxy-5α,17α-19-norpregn-20-yn-3-one 
• 24193-68-8 17-(3-phenyl-isoxazol-5-yl)-estr-4-ene-3β,17β-diol 

Relevant academic research and scientific papers

Synthesis of 5,17-dihydroxy-5α,17α,-19-norpregn-20-yn-3-one, a major photodegradation product of norethindrone

A convenient synthesis of 5,17-dihydroxy-5α,17α-19-norpregn-20-yn-3-one in multigram quantities from norethindrone is reported. Confirmation of the structural assignment of this major photodegradation product of norethindrone is thus made.

Water-soluble steroid compounds

Beta-cyclodextrin forms a water-soluble complex or inclusion compound with steroid compounds having a molecular structure smaller than the interior cavity in the doughnut-shaped molecular structure of beta-cyclodextrin. The resulting inclusion compounds can be used for a variety of applications including aqueous topical ophthalmic preparations and topical dermatological ointments.

Novel N-nitroso compounds, compositions containing such compounds, processes for their preparation and methods of treatment therewith, and novel intermediates

This invention relates to novel N-halogenoalkyl-N-nitroso carbamates and N 4 halogenalkyl-N 4 -nitroso allophanates of steroid compounds, having an anti-tumor activity, and to the preparation thereof. The invention is also concerned with pharmaceutical compositions containing the said compounds, and methods of treatment therewith.