Substituted phosphonamides, a process for preparing the same and a pharmaceutical composition which is useful in the treatment of hypertension
申请人:Merck & Co., Inc.
公开号:EP0058427A2
公开(公告)日:1982-08-25
There are disclosed substituted phosphonamides and related compounds of the general formula
wherein:
R, is alkyl or substituted alkyl of C1-C6 wherein the substituent is halo, amino, acylamino; aralkyl wherein the alkyl is C1-C4 optionally substituted by amino or acylamino and wherein the aryl function is phenyl or naphthyl optionally substituted by halo or hydroxyl; or, heteroaralkyl wherein the alkyl is C1-C4 optionally substituted by amino or acylamino and wherein the heteroaryl group can be indolyl or thienyl;
R2 is H, lower alkyl of C1-C4, aralkyl.
R3 is lower alkyl of C1-C6 optionally substituted by an amino group;
R4 is H, lower alkyl of C1-C6, aralkyl.
X is (CH2)n wherein n is 1 or 2, CH-OCH3, CH-OH, or S; and,
the pharmaceutically acceptable salts thereof. THese compounds are useful as converting enzyme inhibitors and as antihypertensives.
A convenient synthetic route to N-aryl and N-alkylamino(alkyl) phosphonates and phosphine oxides
作者:A. Couture、E. Deniau、P. Woisel、P. Grandclaudon
DOI:10.1016/0040-4039(95)00288-n
日期:1995.4
A variety of phosphorylated N-aryl and N-alkyl N-formyl and N-tert-butoxycarbonylaminomethyl derivatives have been efficiently prepared by treatment of the corresponding chloromethyl derivatives with a trialkyl phosphite or an alkyl diphenylphosphinite. These bifunctional compounds may be deprotonated with LDA and further submitted to electrophilic substitution. An acidic treatment of the resulting