used as substrates to obtain chiral Hantzsch-type 1,4-DHPs, which are frequently contained in pharmaceuticals. The inert C−H bond was converted into a versatile C−Br bond, which enabled the modification of the chiral 1,4-DHP derivatives with high efficiency by nucleophilic substitution. Furthermore, axially chiral 4-aryl pyridines were accessible by central-to-axial chirality conversion.
Process for preparation of certain tetrahydrofuro[3,4-b]pyridines
申请人:Merck & Co., Inc.
公开号:US04567268A1
公开(公告)日:1986-01-28
A facile process for the preparation of certain tetrahydrofuro[3,4-b]pyridines is described. The compounds have pharmacological properties useful in the study and treatment of cardiovascular diseases.
Shinde, D. B.; Shinde, N. D.; Shingare, M. S., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1995, vol. 34, # 10, p. 920 - 922
作者:Shinde, D. B.、Shinde, N. D.、Shingare, M. S.、Dubey, M. P.、Patnaik, G. K.
DOI:——
日期:——
Mane, D. V.; Shinde, D. B.; Thore, S. N., Bulletin des Societes Chimiques Belges, 1997, vol. 106, # 3, p. 159 - 162
作者:Mane, D. V.、Shinde, D. B.、Thore, S. N.、Bhawsar, S. B.、Shingare, M. S.
DOI:——
日期:——
1,4-Dihydropyridine antagonist activities at the calcium channel: a quantitative structure-activity relationship approach
作者:Robert A. Coburn、Mark Wierzba、Mark J. Suto、Alan J. Solo、A. M. Triggle、David J. Triggle
DOI:10.1021/jm00119a009
日期:1988.11
The effect of 46 1,4-dihydropyridine-type calcium channel antagonists on the tonic contractile response of longitudinal muscle strips of guinea pig ileum was determined. 2,6-Dimethyl-3,5-dicarbomethoxy-4-phenyl-1,4-dihydropyridine (13) and 13 ortho-, 15 meta-, and seven para-monosubstituted and 10 polysubstituted aromatic derivatives of 13 were studied. The pharmacological activities of the monosubstituted derivatives were best correlated by eq 10, log 1/C = 0.68 pi + 2.50 sigma m -0.47Lmeta -3.40B1para + 11.31, which had a correlation coefficient of 0.89. The full data set was best correlated by eq 11, log 1/C = 0.62 pi + 1.96 sigma m -0.44Lmeta -3.26B1para -1.51Lmeta' + 14.23, which had a correlation coefficient of 0.90. Equations of similar form but involving an ortho steric term were found to correlate the radioligand binding data for this class of compounds.