摘要 |
Certain novel bicyclooctanes and their pharmaceutically acceptable salts are useful in the treatment of gastrointestinal ulcers. These compounds can be prepared by various methods and have the formula …<CHEM>… wherein X<1> is a free or esterified carboxyl group, a hydroxymethyl group, a cyano group, a group of the formula: …<CHEM>… (R<a> and R<b> are each independently a hydrogen atom, a C1-C4 alkyl group, a C3-C7 cycloalkyl group, a benzyl group, a phenyl group, a phenyl group substituted with a halogen atom or a C1-C4 alkyl group, or, when taken together with the adjacent nitrogen atom to which they are attached, they represent a 5 to 7-membered saturated heterocyclic group) or a group of the formula: …<CHEM>… (R<a> and R<b> are each as defined above), Y is an ethylene group or a vinylene group, R<1> is a hydrogen atom, a hydroxyl group or a protected hydroxyl group, R<2> is a hydrogen atom or R1 and R2, when taken together, means a single linkage to form a double bond between the carbon atoms which they are linked, R<3> is a hydroxyl group or a protected hydroxyl group, R<4> is a hydrogen atom or a C1-C4 alkyl group, R<5> is a hydrogen atom, a C3-C8 alkenyl group, a C3-C8 alkynyl group, a C1-C8 alkyl group, a C3-C7 cycloalkyl group or a group of the formula: -(CH2)n-B (n is 1 or 2 and B is a C1-C4 alkoxyl group, a C3-C7 cycloalkyl group, or a phenyl or phenoxy group optionally substituted with a halogen atom, a C1-C4 alkyl group, a trifluoromethyl group or a C1-C4 alkoxyl group), A is a group of either one of the formulae:… -CH=CH-, …<CHEM>… (R<6> and R<7> are each independently a hydrogen atom or a C1-C4 alkyl group) and …<CHEM>… m1 is 1 or 2 and m2 is 0, 1 or 2. |
申请人 |
SUMITOMO CHEMICAL CO,JP |
发明人 |
ONO,KEIICHI,JP;SUGIE,AKIHIKO,JP;KAVAKAMI,HAJIME,JP;SAMI,SHUNSUKE,JP;KOJIME,ATSUYUKI,JP;KATSUBE,JUNKI,JP |