757905-89-8

Upstream product

• 288-88-0 1,2,4-Triazole 
• 871116-92-6 2-(3-bromo-5-bromomethyl-phenyl)-2-methylpropionitrile 
• 41253-21-8 sodium triazole 

Relevant academic research and scientific papers

1,2,4-TRIAZOL-l-YL BISPHENYL DERIVATIVES FOR USE IN THE TREATMENT OF ENDOCRINE-DEPENDENT TUMOURS

There is provided a compound of Formula I wherein R3, R4, R5, R6 and R7 are independently selected from H and -Y-R6; wherein each R8 is independently selected from -OH, hydrocarbyl groups, oxyhydrocarbyl groups, cyano (-CN), nitro (-NO2), H-bond acceptors, and halogens; wherein at Jeast one of R3, R4, R5, R6 and R7 is -Y-R8 wherein R8 is selected from substituted and unsubstituted ? heterocyclic rings and amino substituted phenyl groups, wherein X is a bond or a linker group; wherein Y is an optional linker group; and wherein ring A is optionally further , substituted; wherein R9 is selected from H, -OH and -OSO2NR1R2; wherein R1 and R2 are independently selected from H and hydrocarbyl; wherein (a) X is a bond and at least one of R3, R4, R5, R6 and R7 is -Y-R8; OR (b) R9 is -OSO2NR1R2 or - OH and four of R3, R4, R5, R6 and R7 are H and one of R3, R4, R5, R6 and R7 is -Y-R8. These compounds inhibit steroid sulphatase and aronatase activity and are useful in the treatment of endocrine-dependent tumours.

Dual aromatase-sulfatase inhibitors based on the anastrozole template: Synthesis, in vitro SAR, molecular modelling and in vivo activity

The synthesis and biological evaluation of a series of novel Dual Aromatase-Sulfatase Inhibitors (DASIs) are described. It is postulated that dual inhibition of the aromatase and steroid sulfatase enzymes, both responsible for the biosynthesis of oestrogens, will be beneficial in the treatment of hormone-dependent breast cancer. The compounds are based upon the Anastrozole aromatase inhibitor template which, while maintaining the haem ligating triazole moiety crucial for enzyme inhibition, was modified to include a phenol sulfamate ester motif, the pharmacophore for potent irreversible steroid sulfatase inhibition. Adaption of a synthetic route to Anastrozole was accomplished via selective radical bromination and substitution reactions to furnish a series of inhibitory aromatase pharmacophores. Linking these fragments to the phenol sulfamate ester moiety employed SN2, Heck and Mitsunobu reactions with phenolic precursors, from where the completed DASIs were achieved via sulfamoylation. In vitro, the lead compound, 11, had a high degree of potency against aromatase (IC50 3.5 nM), comparable with that of Anastrozole (IC50 1.5 nM) whereas, only moderate activity against steroid sulfatase was found. However, in vivo, 11 surprisingly exhibited potent dual inhibition. Compound 11 was modelled into the active site of a homology model of human aromatase and the X-ray crystal structure of steroid sulfatase. This journal is The Royal Society of Chemistry.

PHENYL-SULFAMATES AS AROMATASE INHIBITORS

There is provided a compound of Formula (I) wherein X, Y and Z are each independently of each other an optional linker group; R, is a ring system; R2 is selected from hydrocarbyl groups, oxyhydrocarbyl groups, cyano (CN), nitro (-NO2) and halogens; R3 and R4 are independently selected from H and hydrocarbyl, ring A and B are independently optionally further substituted.