The synthesis and irreversible alpha-blocking activity in the rat vas deferens of a series of tetra- and diamine disulfides 2-38, structural analogues of benextramine (BHC), are described. All compounds containing a central cystamine moiety displayed an irreversible alpha-adrenergic blockade at concentrations ranging from 10(-4) to 6 X 10(-6)M. Potency was increased in cystamines N,N'-disubstituted with 6-aminohexyl groups, especially when the outer nitrogen atoms bear arylalkyl substituents or are enclosed in a ring. However, N,N,N',N'-tetrasubstituted cystamines were poor blockers. Structural specificity in the outer portion of the tetramine disulfide is low, since many types of substituents gave rise to potent alpha-blockers. Even replacement of the outer amines with nonbasic ethers or amides was observed to maintain irreversible alpha-blockade.
ALVAREZ, M.;GRANADOS, R.;LAVILLA, R.;SALAS, M., J. HETEROCYCL. CHEM., 1985, 22, N 3, 745-750
作者:ALVAREZ, M.、GRANADOS, R.、LAVILLA, R.、SALAS, M.
DOI:——
日期:——
ALVAREZ, M.;GRANADOS, R.;MAULEON, D.;ROSELL, G.;SALAS, M.;SALLES, J.;VALL+, J. MED. CHEM., 30,(1987) N 7, 1186-1193