A 2,3-epoxycyclopentanone represented by the formula (IV): ##STR1## wherein the variables are as defined in the specification, which is used in the preparation of a 2-substituted-2-cyclopentanone compound suitable for use as an anticancer agent and a bone formation accelerator.
2-Substituted-2-cyclopentenones represented by the formula (I):
wherein A is a hydroxyl group or
and B is a hydrogen atom or A and B are bonded together to form one bonding arm;
R1 represents a substituted or unsubstituted hydrocarbon group having 1 to 10 carbon atoms;
R2 represents a substituted or unsubstituted aliphatic hydrocarbon group having 1 to 10 carbon atoms;
R3 represents a substituted or unsubstituted aliphatic hydrocarbon group having 1 to 10 carbon atoms; wherein, when R3 is a single bond bonded to the cyclopentene skeleton,
X represents a hydrogen atom, a hydroxyl group or a protected hydroxyl group; and
when R3 is a double bond bonded to the pentene skeleton, X represents a bonding arm constituting a part of said double bond; and
m and n independently represent 0, 1 or 2.
由式(I)代表的 2-取代-2-环戊烯酮:
其中 A 是羟基或
和 B 是氢原子或 A 和 B 键合在一起形成一个键臂;
R1 代表具有 1 至 10 个碳原子的取代或未取代的烃基;
R2 代表具有 1 至 10 个碳原子的取代或未取代的脂肪族烃基;
R3 代表具有 1 至 10 个碳原子的取代或未取代的脂族烃基; 其中,当 R3 是键合在环戊烯骨架上的单键时、
X 代表氢原子、羟基或受保护的羟基;以及
当 R3 是与戊烯骨架结合的双键时,X 代表构成所述双键一部分的键臂;以及
m 和 n 分别代表 0、1 或 2。
US5116869A
申请人:——
公开号:US5116869A
公开(公告)日:1992-05-26
US5216183A
申请人:——
公开号:US5216183A
公开(公告)日:1993-06-01
2-substituted-2-cyclopentenones
申请人:Teijin Limited
公开号:US05116869A1
公开(公告)日:1992-05-26
2-Substituted-2-cyclopentenones represented by the formula (I): ##STR1## wherein A is a hydroxyl group or ##STR2## and B is a hydrogen atom or A and B are bonded together to form one bonding arm; R.sup.1 represents a substituted or unsubstituted hydrocarbon group having 1 to 10 carbon atoms; R.sup.2 represents a substituted or unsubstituted aliphatic hydrocarbon group having 1 to 10 carbon atoms; R.sup.3 represents a substituted or unsubstituted aliphatic hydrocarbon group having 1 to 10 carbon atoms; wherein, when R.sup.3 is a single bond bonded to the cyclopentene skeleton, X represents a hydrogen atom, a hydroxyl group or a protected hydroxyl group; and when R.sup.3 is a double bond bonded to the pentene skeleton, X represents a bonding arm constituting a part of said double bond; and m and n independently represent 0, 1 or 2.