作者:John E. Arrowsmith、Simon F. Campbell、Peter E. Cross、John K. Stubbs、Roger A. Burges、Donald G. Gardiner、Kenneth J. Blackburn
DOI:10.1021/jm00159a022
日期:1986.9
A series of dihydropyridines substituted at the 2-position by basic side chains are described and their potencies as calcium antagonists listed. One compound, 2-[(2-aminoethoxy)methyl]-4-(2-chlorophenyl)-3-ethoxycarbonyl-5- methoxycarbonyl-6-methyl-1,4-dihydropyridine (17, amlodipine) was found to be comparable in potency to nifedipine and to have an elimination half-life of 30 h in dogs. Oral bioavailability
Dihydropyridine anti-ischaemic and antihypertensive agents, processes for their production, and pharmaceutical compositions containing them
申请人:Pfizer Limited
公开号:EP0060674A1
公开(公告)日:1982-09-22
Dihydropyridine anti-ischaemic and antihypertensive agents of the formula:
where Y is -(CH2)2- or -(CH2)3-; R is aryl or heteroaryl; R1 and R2 are each independently C1-C4 alkyl or 2-methoxyethyl;
and R3 and R4 are each independently C1-C4 alkyl or aryl-(C1-C4 alkyl); or R3 and R4 taken together with the nitrogen atom to which they are attached represent a group of the formula:
where R5 is C1-C4 alkyl, aryl, aryl-(C1-C4 alkyl), benzhydryl, 2-methoxyethyl, 2-(N,N-di[C1-C4 alkyl]amino) ethyl, or cyclopropylmethyl;
their pharmaceutically acceptable acid addition salts, processes for the preparation of the compounds, and pharmaceutical compositions containing them.
Compounds of the formula:
and pharmaceutically acceptable salts thereof wherein R is aryl or heteroaryl; R' and R2 are each independently C1-C4 alkyl. 2-hydroxyethyl or 2-methoxyethyl; R3 and R4 are each independently H or C1-C4 alkyl or taken together with the nitrogen atom to which they are attached, they form a pyrrolidinyl, piperidyl, morpholino, piperazinyl or N-(C1-C4 alkyl)piperazinyl group; R5 is C1-C4 alkyl which may be optionally substituted by OH or C1-C4 alkoxy; Y is a C2-C6 alkylene bridge which may be branched and which may optionally be substituted by OH, or alternatively, R5 may be a C1-C4 alkylene bridge linked to a carbon atom in Y to form. with the nitrogen atom to which they are attached, a piperidine ring; Q is CH or N;each X is independently C1-C4 alkyl, C1-C4 alkoxy, halogen or CF3 and m is 0 or an integer of from 1 to 3; are cardiovascular agents having both calcium antagonist and alpha1-antgonist activity and are useful for the treatment of hypertension, heart failure and angina.
Long-acting dihydropyridine calcium antagonists. 7. Compounds containing unsaturation in the 2-substituent on the 1,4-dihydropyridine ring
作者:D Alker、PE Cross
DOI:10.1016/0223-5234(91)90197-u
日期:1991.9
To evaluate the effect of introducing unsaturation into the 2-substituent of 1,4-dihydropyridines related to amlodipine (1), a number of alkene and alkyne analogues were prepared and their calcium antagonist activity was assessed. For several series of compounds, in vitro potency increased in the order alkane < alkene < alkyne. This trend may either reflect decreasing entropy loss on binding to the DHP receptor or be a consequence of a favourable pi-interaction with the DHP receptor.
ARROWSMITH J. E.; CAMPBELL S. F.; CROSS P. E.; STUBBS J. K.; BURGES R. A.+, J. MED. CHEM., 29,(1986) N 9, 1696-1702
作者:ARROWSMITH J. E.、 CAMPBELL S. F.、 CROSS P. E.、 STUBBS J. K.、 BURGES R. A.+