ABSTRACT
Sulfamate and its derivatives have a range of biological activities. One-pot cyclocondensation of alkenes (1a-i) with chlorosulfonyl isocyanate generates ß-lactams. ß-Amino acid derivatives (2a-i) from ß-lactams were synthesized. Then, these highly reactive compounds were opened with MeOH to produce the corresponding sulfamate derivatives in good yields. The inhibitory effects of the novel sulfamate derivatives were tested on human carbonic anhydrase I and II isoenzymes (hCA I and hCA II), acetylcholinesterase (AChE), butyrylcholinesterase (BChE), and α-glycosidase (α-Gly). Novel sulfamate derivatives showed Ki values in the range of 23.81-42.97 nM against hCA I, 8.95-52.23 nM against hCA II, 8.10-45.51 nM against AChE, 23.16-81.84 nM against BChE, and 14.02-48.68 nM against α-Gly. As a result, the novel sulfamate derivatives had potent inhibitory effects against both isoenzymes. Overall, due to the inhibitory effects of the novel sulfamate derivatives on the tested metabolic enzymes, they are promising drug candidates for the treatment of diseases like glaucoma, epilepsy, leukemia, Alzheimer's disease, and type 2 diabetes mellitus, which are associated with high enzymatic activity of the indicated metabolic enzymes.
Subject(s)
Alkenes/chemistry , Amino Acids/chemical synthesis , Enzyme Inhibitors/chemical synthesis , Isocyanates/chemistry , Sulfonic Acids/chemistry , Acetylcholinesterase/metabolism , Amino Acids/chemistry , Amino Acids/pharmacology , Butyrylcholinesterase/metabolism , Carbonic Anhydrases/metabolism , Cycloaddition Reaction , Enzyme Inhibitors/chemistry , Enzyme Inhibitors/pharmacology , Glycoside Hydrolases/antagonists & inhibitors , Molecular StructureABSTRACT
Sulfamates have a large spectrum of biological activities including enzyme inhibition. Eight sulfamates derived from menthol (2a-h) were synthesized. Also, in the other section of this study, novel sulfamate derivatives of menthol were tested against some metabolic enzymes including acetylcholinesterase (AChE), butyrylcholinesterase (BChE), and carbonic anhydrase I and II enzymes (hCAs I and II). The newly synthesized novel menthol sulfamate and menthol carbonyl sulfamate derivatives showed Ki values in the range of 34.37 ± 8.17 to 53.40 ± 10.61 nM against hCA I, 12.91 ± 4.57 to 38.67 ± 6.22 nM against hCA II, 111.17 ± 52.36 to 522.86 ± 120.08 nM against AChE, and 50.01 ± 11.73 to 109.63 ± 50.08 nM against BChE. As a result, the novel menthol sulfamate and menthol carbonyl sulfamate derivatives can be promising Alzheimer's disease drug candidates and novel hCA I and hCA II enzymes inhibitors.