138453-01-7Relevant academic research and scientific papers
Use of Pyrrole Anions as Nucleophiles in Electrochemically Induced SRN1 Reactions
Chahma, M.,Combellas, C,Marzouk, H.,Thiebault, A.
, p. 6121 - 6124 (1991)
The reactivity of different aryl radicals towards anions of pyrroles is examined under SRN1 conditions.The coupling rate constants are determined by cyclic voltammetry.The corresponding electrolyses are performed using a redox mediator. Key Words: liquid ammonia; SRN1; electrosynthesis; substituted pyrroles.
Synthesis of 2,2,5-Trisubstituted 2 H-Pyrroles and 2,3,5-Trisubstituted 1 H-Pyrroles by Ligand-Controlled Site-Selective Dearomative C2-Arylation and Direct C3-Arylation
Yamaguchi, Miyuki,Fujiwara, Sakiko,Manabe, Kei
supporting information, p. 6972 - 6977 (2019/09/03)
Palladium-catalyzed site-selective dearomative C2-arylation of 2,5-diaryl-1H-pyrroles with aryl chlorides was accomplished, and a series of 2,2,5-triaryl-2H-pyrroles were synthesized. In addition, the site selectivity of the reaction was switched by simply changing the ligand, and the direct C3-arylated 2,3,5-triaryl-1H-pyrroles were prepared. The obtained 2,2,5-triaryl-2H-pyrroles could be further transformed into 2,2,5,5-tetraarylpyrrolidines.
SUBSTITUTED PYRROLE DERIVATIVE
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Page/Page column 86-87, (2010/11/08)
The present invention provides a novel pyrrole derivative having excellent androgen receptor antagonism, which is represented by the formula (I): wherein R1represents a hydrogen atom, a cyano group or a group represented by the formula COORA (wherein RA represents an optional substituted C1-6 alkyl group), R2 and R4 are the same or different, and each represents a hydrogen atom, a C1-6 alkyl group, a C3-6 cycloalkyl group, a trifluoromethyl group, an amino-C1-6 alkyl group, a mono-or di-substituted amino-C1-6 alkyl group, an optionally halogenated C1-6 alkyl group substituted with an optionally substituted hydroxyl group, a C2-6 alkenyl group substituted with an optionally substituted hydroxyl group, a C1-6 alkyl group substituted with an optionally substituted and optionally oxidized thiol group, an optionally substituted with and optionally oxidized thiol group, a cyano group, an acyl group, an optionally substituted oxazolyl group or a 1,3-dioxolan-2-yl group, R3 represents a group represented by the formula (a): (wherein X represents a halogen atom, Y represents a carbon atom or a nitrogen atom, Alk represents an optionally substituted C 1-4 alkylene group, and RB represents a hydrogen atom or an acyl group), and R5 represents a phenyl group which has a cyano group at a 4-position or a 3-position thereof, and may be further substituted, or a salt thereof. The present invention also provides an androgen receptor antagonist containing the pyrrole derivative, or a salt thereof.
