LS-1727

LS-1727
Clinical data
Other namesLEO-1727; 19-Nortestosterone 17β-N-(2-chloroethyl)-N-nitrosocarbamate; Nandrolone chloroethylnitrosocarbamate
Routes of
administration		Intramuscular injection
Drug classCytostatic antineoplastic agent; Androgen; Anabolic steroid; Androgen ester; Progestogen
Identifiers
  • [(8R,9S,10R,13S,14S,17S)-13-methyl-3-oxo-2,6,7,8,9,10,11,12,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-17-yl] N-(2-chloroethyl)-N-nitrosocarbamate
CAS Number
PubChem CID
ChemSpider
CompTox Dashboard (EPA)
Chemical and physical data
FormulaC21H29ClN2O4
Molar mass408.92 g·mol−1
3D model (JSmol)
  • C[C@]12CC[C@H]3[C@H]([C@@H]1CC[C@@H]2OC(=O)N(CCCl)N=O)CCC4=CC(=O)CC[C@H]34
  • InChI=1S/C21H29ClN2O4/c1-21-9-8-16-15-5-3-14(25)12-13(15)2-4-17(16)18(21)6-7-19(21)28-20(26)24(23-27)11-10-22/h12,15-19H,2-11H2,1H3/t15-,16+,17+,18-,19-,21-/m0/s1
  • Key:KTQUNVRSLAGBSY-RRFJAZBJSA-N

LS-1727 (also known as nandrolone 17β-N-(2-chloroethyl)-N-nitrosocarbamate) is a synthetic, injected anabolic–androgenic steroid (AAS) and a nitrosocarbamate ester of nandrolone (19-nortestosterone) which was developed as a cytostatic antineoplastic agent but was never marketed.[1][2][3][4]

Relative affinities (%) of nandrolone and related steroids
Compound PRTooltip Progesterone receptor ARTooltip Androgen receptor ERTooltip Estrogen receptor GRTooltip Glucocorticoid receptor MRTooltip Mineralocorticoid receptor SHBGTooltip Sex hormone-binding globulin CBGTooltip Corticosteroid-binding globulin
Nandrolone 20 154–155 <0.1 0.5 1.6 1–16 0.1
Testosterone 1.0–1.2 100 <0.1 0.17 0.9 19–82 3–8
Estradiol 2.6 7.9 100 0.6 0.13 8.7–12 <0.1
Notes: Values are percentages (%). Reference ligands (100%) were progesterone for the PRTooltip progesterone receptor, testosterone for the ARTooltip androgen receptor, estradiol for the ERTooltip estrogen receptor, dexamethasone for the GRTooltip glucocorticoid receptor, aldosterone for the MRTooltip mineralocorticoid receptor, dihydrotestosterone for SHBGTooltip sex hormone-binding globulin, and cortisol for CBGTooltip corticosteroid-binding globulin. Sources: See template.
  1. ^ Reynolds RC, Tiwari A, Harwell JE, Gordon DG, Garrett BD, Gilbert KS, Schmid SM, Waud WR, Struck RF (2000). "Synthesis and evaluation of several new (2-chloroethyl)nitrosocarbamates as potential anticancer agents". J. Med. Chem. 43 (8): 1484–8. doi:10.1021/jm990417j. PMID 10780904.
  2. ^ J. Elks (14 November 2014). The Dictionary of Drugs: Chemical Data: Chemical Data, Structures and Bibliographies. Springer. pp. 660–. ISBN 978-1-4757-2085-3.
  3. ^ Müntzing J, Kirdani RY, Williams PD, Murphy GP (1981). "Effect of LS 1727, a nitrosocarbamate of 19-nortestosterone, on the R-3327 rat prostatic adenocarcinoma". Res. Commun. Chem. Pathol. Pharmacol. 32 (2): 309–16. PMID 7244365.
  4. ^ Hartley-Asp B, Wilkinson R, Venitt S, Harrap KR (1981). "Studies on the mechanism of action of LS 1727, a nitrosocarbamate of 19-nortestosterone". Acta Pharmacol Toxicol (Copenh). 48 (2): 129–38. doi:10.1111/j.1600-0773.1981.tb01598.x. PMID 6167141.