52516-44-6Relevant articles and documents
DIHYDROPYRIDINE DERIVATIVES
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Page/Page column 10, (2009/09/07)
The present invention relates to dihydropyridine derivatives having general formula (I) or a pharmaceutically acceptable salt thereof, wherein R1 is (1-6C)alkyl, (2-6C)alkenyl, (2-6C)alkynyl, phenyl, (1-5C)heteroaryl R2, R3 are independently (1-4C)alkyl, (2-4C)alkenyl, (2-4C)alkynyl, (1-4C)alkoxy, (24C)alkenyloxy, (2-4C)alkynyloxy, halogen X is SO2, CH2, C(O) or X is absent R4 is (1-6C)alkyl, (2-6C)alkenyl, (2-6C)alkynyl, (3-6C)cycloalkyl, (3-6C)cycloalkenyl, (3-6C)cycloalkyl(1-4C)alkyl, (2-6C)heterocycloalkyl, (2-6C)heterocycloalkyl(14C)alkyl, (6-1 OC)aryl, (6-10C)aryl(1-4C)alkyl, (1-9C)heteroaryl or (1-9C)heteroaryl(14C)alkyl. The compounds are useful for the treatment of fertility disorders.
Reactions of Halogenated α-Phenylcinnamic Acids with Potassium Amide in Liquid Ammonia : Part II - Mechanism of Cyclisation of ortho- and meta- Chloro-α-phenylcinnamic Acids
Kessar, S. V.,Nadir, U. K.,Pahwa, P. S.,Singh, Paramjit,Gupta, Y. P.
, p. 7 - 9 (2007/10/02)
Reaction of trans-2-chloro-3-methoxy-α-phenylcinnamic acid (1) with KNH2/NH3 gives 4-methoxyphenanthrene-9-carboxylic acid (2).A similar treatment of 1-(2'-chlorophenyl)-2,2-diphenylethylene (15a) affords 9-phenylphenanthrene but its meta-halogenated anal
