161579-75-5

Upstream product

• 74214-19-0 3β-benzoyloxy-5-bromo-6β,19-epoxy-5α-pregnan-20-one 
• 161579-69-7 (20R)-5-bromo-6β,19-epoxy-20-hydroxy-5α-pregnan-3β-yl benzoate 
• 161579-72-2 (20R)-19-hydroxypregn-5-ene-3β,20-diyl 3-benzoate 20-formate 
• 186581-53-3 diazomethane 
• 161579-74-4 (19E,20R)-3β,20-dihydroxypregn-5-en-19-al 3-benzoate 20-formate 19-(O-carboxymethyl)oxime 
• 161579-73-3 (20R)-3β,20-dihydroxypregn-5-en-19-al 3-benzoate 20-formate 
• 161579-71-1 (20R)-5-bromo-6β,19-epoxy-5α-pregnane-3β,20-diyl 3-benzoate 20-formate 

Downstream Products

• 161579-80-2 (19E)-3β,17-dihydroxy-20-oxopregn-5-en-19-al 3-benzoate 19-(O-carboxymethyl)oxime methylester 
• 161579-77-7 (19E)-3β-hydroxy-20-oxopregn-5-en-19-al 3-benzoate 19-(O-carboxymethyl)oxime methylester 
• 161579-76-6 (19E,20R)-3β,20-dihydroxypregn-5-en-19-al 3-benzoate 19-(O-carboxymethyl)oxime methylester 

Relevant academic research and scientific papers

Synthesis of (19E)-3β,17-dihydroxy-20-oxopregn-5-en-19-al 19-(O-carboxymethyl)oxime, new steroidal hapten for 17-hydroxypregnenolone

A synthesis of (19E)-3β,17-dihydroxy-20-oxopregn-5-en-19-al 19-(O-carboxymethyl)oxime (15), is reported.Hydride reduction of ketone 1 gave the (20R)-hydroxy derivative 2 as the main product.Formylation of 2 followed by cleavage of the epoxide ring and mil