160721-28-8Relevant articles and documents
CYCLOHEXANE DERIVATIVE COMPOUND
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Paragraph 0458-0465, (2013/08/15)
To find a therapeutic and/or prophylactic agent for gastrointestinal disorders and so on, the agent having excellent activity and high safety. A compound represented by the following general formula (I) or a pharmacologically acceptable salt thereof. In the formula, A represents an optionally substituted phenylene group; B represents an optionally substituted 4- to 10-membered heterocyclic group, an optionally substituted C6-C10 aryl group, or an optionally substituted C3-C10 cycloalkyl group; R1 represents a hydrogen atom or a C1-C3 alkyl group; R2 represents a hydrogen atom or a C1-C3 alkyl group; R3 represents a C1-C6 alkyl group, a C3-C10 cycloalkyl group, a C1-C3 alkoxy C1-C3 alkyl group, or a C1-C3 hydroxyalkyl group; R4 represents a hydrogen atom, a C1-C6 alkyl group, or a halogen atom; n represents an integer of 1 to 4; and X represents methylene, -O-, -NH-, -N(C1-C3 alkyl)-, -C(=O)-, -S-, -S(O)-, -S(O2)- or a single bond.
Regioselective synthesis of 1,8-dihydroxytetralins through a tandem reduction/intramolecular hydroxyalkylation of 4-(3-hydroxyphenyl)alkanoates
Guanti, Giuseppe,Banfi, Luca,Riva, Renata
, p. 11945 - 11966 (2007/10/02)
A series of 4-(3-hydroxyphenyl)butanoates 3 has been prepared and transformed into 1,8-dihydroxytetralins of general formula 2 by treatment with 2 equivalents of DIBALH followed by quenching with aqueous NH4Cl. A possible mechanism for this novel totally regioselective intramolecular hydroxyalkylation is suggested and the factors affecting the stability of 1,8-dihydroxytetralins 2 are also discussed.