| abstract |
Compounds represented by formula (I), or salts thereof; a process for the preparation thereof; and somatostatin receptor regulators containing the compounds or salts: wherein A is an optionally substituted aromatic ring; B is an optionally substituted cyclic hydrocarbon group; R1 is hydrogen, optionally substituted hydrocarbyl, an optionally substituted heterocyclic group, or acyl; R2 is optionally substituted amino; D is a free valency or a divalent group; E is -CO-, -CON(Ra)-, -COO-, -N(R?a)CON(Rb¿)-, -N(Ra)SO2-, -N(Ra)-, -O-, -S-, -SO- or -SO¿2?-; G is a free valency or a divalent group; L is a free valency, an optionally substituted divalent hydrocarbon group which may be interrupted by -O- or -S-, or the like; X is oxygen, optionally oxidized sulfur, optionally substituted nitrogen, or an optionally substituted divalent hydrocarbon group; Y is two hydrogen atoms, oxygen, or sulfur; and the dotted line indicates that R?2¿ and an atom on ring B may together form a ring. |