Cannabaceae

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7α-Thioprogesterone
Clinical data
Other names7α-TP4; SC-8365; 7α-Mercaptopregn-4-ene-3,20-dione
Identifiers
  • (1S,3aS,3bS,4R,9aR,9bS,11aS)-1-Acetyl-9a,11a-dimethyl-4-sulfanyl-1H,2H,3H,3aH,3bH,4H,5H,7H,8H,9H,9aH,9bH,10H,11H,11aH-cyclopenta[a]phenanthren-7-one
Chemical and physical data
FormulaC21H28O2S
Molar mass344.51 g·mol−1
3D model (JSmol)
  • O=C(C)[C@]1CC[C@]([H])2[C@@]([H])3[C@](S[H])CC4=CC(CC[C@]4(C)[C@@]3([H])CC[C@@]21C)=O
  • InChI=1S/C21H28O2S/c1-12(22)15-4-5-16-19-17(7-9-21(15,16)3)20(2)8-6-14(23)10-13(20)11-18(19)24/h10,16-17,19,24H,4-9,11H2,1-3H3/t16-,17-,19-,20-,21+/m0/s1
  • Key:MTDUGSYXIPHNBV-JZTRKIHISA-N

7α-Thioprogesterone (7α-TP4; developmental code name SC-8365; also known as 7α-mercaptopregn-4-ene-3,20-dione) is a synthetic, steroidal, and potent antimineralocorticoid (putative) and antiandrogen which was developed by G. D. Searle & Co and was described in the late 1970s and early 1980s but was never developed or introduced for medical use.[1][2][3] It is a derivative of progesterone (pregn-4-ene-3,20-dione) with a thio (sulfur) substitution at the C7α position, and is related to the spirolactone group of drugs but lacks a γ-lactone ring.[1][2]

As an antiandrogen, 7α-TP4 has approximately 8.5% of the affinity of dihydrotestosterone (DHT) for the rat ventral prostate androgen receptor (AR), which is similar to that of spironolactone and its active metabolite 7α-thiomethylspironolactone.[1] The drug has also been assessed at steroid hormone-associated carrier proteins, and shows very low binding to sex hormone-binding globulin (SHBG) but high affinity for corticosteroid-binding globulin (CBG) approximately equal to that of progesterone.[2]

7α-Acetylthio-17α-hydroxyprogesterone, a related derivative of progesterone and also of 17α-hydroxyprogesterone, has been found to possess potent antimineralocorticoid activity similarly.[4] Spironolactone is the derivative of this compound in which the acetyl group at the C17β position has been cyclized with the C17α hydroxyl group to form a spiro 21-carboxylic acid γ-lactone ring.[5][6][7]

References[edit]

  1. ^ a b c Cutler GB, Pita JC, Rifka SM, Menard RH, Sauer MA, Loriaux DL (1978). "SC 25152: A potent mineralocorticoid antagonist with reduced affinity for the 5 alpha-dihydrotestosterone receptor of human and rat prostate". J. Clin. Endocrinol. Metab. 47 (1): 171–5. doi:10.1210/jcem-47-1-171. PMID 263288.
  2. ^ a b c Pugeat MM, Dunn JF, Nisula BC (1981). "Transport of steroid hormones: interaction of 70 drugs with testosterone-binding globulin and corticosteroid-binding globulin in human plasma". J. Clin. Endocrinol. Metab. 53 (1): 69–75. doi:10.1210/jcem-53-1-69. PMID 7195405.
  3. ^ Ulrich Westphal (6 December 2012). Steroid-Protein Interactions II. Springer Science & Business Media. pp. 501–. ISBN 978-3-642-82486-9.
  4. ^ Ralph I. Dorfman (5 December 2016). Steroidal Activity in Experimental Animals and Man. Elsevier Science. pp. 395–. ISBN 978-1-4832-7299-3.
  5. ^ J. Elks (14 November 2014). The Dictionary of Drugs: Chemical Data: Chemical Data, Structures and Bibliographies. Springer. p. 1111. ISBN 978-1-4757-2085-3. Archived from the original on 15 February 2017.
  6. ^ "Spironolactone". Archived from the original on 2016-06-30. Retrieved 2017-07-04.
  7. ^ "Spironolactone | C24H32O4S | ChemSpider".



source: https://en.wikipedia.org/wiki/7%CE%B1-Thioprogesterone

One thought on “Cannabaceae”

  1. Well, that’s interesting to know that Psilotum nudum are known as whisk ferns. Psilotum nudum is the commoner species of the two. While the P. flaccidum is a rare species and is found in the tropical islands. Both the species are usually epiphytic in habit and grow upon tree ferns. These species may also be terrestrial and grow in humus or in the crevices of the rocks.
    View the detailed Guide of Psilotum nudum: Detailed Study Of Psilotum Nudum (Whisk Fern), Classification, Anatomy, Reproduction

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