86416-32-2

Usage

General Description

"21-hydroxy-9beta,10alpha-pregna-5,7-diene-3-ol-20-one" is a steroid compound that is structurally related to the hormone cortisol. It is a synthetic derivative of the natural hormone, and it has anti-inflammatory and immunosuppressant properties, making it useful in the treatment of conditions such as asthma, rheumatoid arthritis, and autoimmune disorders. This chemical is also used in various pharmaceutical formulations and research studies to better understand its biological activity and potential therapeutic applications.

InChI:InChI=1/C21H30O3/c1-20-9-7-14(23)11-13(20)3-4-15-16-5-6-18(19(24)12-22)21(16,2)10-8-17(15)20/h3-4,14,16-18,22-23H,5-12H2,1-2H3/t14-,16-,17+,18+,20+,21-/m0/s1

Upstream product

• 1693-63-6 3β,21-diacetoxypregn-5-en-20-one 
• 566-78-9 21-acetoxypregnenolone 
• 883879-23-0 3β,21-dihydroxypregna-5,7-dien-20-one diacetate 

Downstream Products

• 1263386-09-9 C₂₁H₃₀O₅ 
• 860616-06-4 (5Z,7E)-3β,21-dihydroxy-9,10-secopregna-5,7,10(19)-trien-20-one 

Relevant academic research and scientific papers

Synthesis and photochemical transformation of 3β,21-dihydroxypregna-5, 7-dien-20-one to novel secosteroids that show anti-melanoma activity

We have synthesized 3β,21-dihydroxypregna-5,7-dien-20-one (21(OH) 7DHP) and used UVB radiation to induce its photoconversion to analogues of vitamin D (pD), lumisterol (pL) and tachysterol (pT). The number and character of the products and the dynamics of the process were dependent on the UVB dose. The main products: pD and pT compounds were characterized by UV absorption, MS and NMR spectroscopy after RP-HPLC chromatography. In addition, formation of multiple oxidized derivatives of the primary products was detected and one of these derivatives was characterized as oxidized 21-hydroxyisotachysterol compound (21(OH)oxy-piT). These newly synthesized compounds inhibited growth of human melanoma cells in a dose dependent manner, with greater or equal potency to calcitriol. 3β,21-Dihydroxy-9β,10α-pregna-5,7-dien-20-one (21(OH)pL) and 21(OH)oxy-piT had higher potency against pigmented melanoma cells, while the EC50 for compounds 21(OH)7DHP and (5Z,7E)-3β,21-dihydroxy-9,10-secopregna-5,7,10(19)-trien-20-one (21(OH)pD) were similar in both pigmented and non-pigmented cells. Moreover, 21(OH)7DHP and its derivatives inhibited proliferation of human epidermal HaCaT keratinocytes, albeit at a lower activity compared to melanoma cells. Importantly, 21(OH)7DHP derivatives strongly inhibited the colony formation of human melanoma cells with 21(OH)pD being the most potent. The potential mechanism of action of newly synthesized compounds was similar to that mediated by 1,25(OH)2D 3 and involved ligand-induced translocation of vitamin D receptor into the nucleus. In summary, we have characterized for the first time products of UVB-induced conversion of 21(OH)7DHP and documented that these compounds have selective, inhibitory effects on melanoma cells.