The present invention provides a compound represented by the formula:
wherein R
1
is a C
1-4
alkyl; R
2
is (1) a 5- to 7-membered nitrogen-containing heterocyclic group which may have a substituent selected from the group consisting of (1′) a halogen, (2′) a hydroxy group, (3′) a C
1-4
alkyl and (4′) a C
1-4
alkoxy, (2) a phenyl which may have a substituent selected from the group consisting of (1′) a halogen, (2′) a C
1-4
alkoxy-C
1-4
alkyl, (3′) a mono-C
1-4
alkyl-carbamoyl-C
1-4
alkyl, (4′) a C
1-4
alkoxy and (5′) a mono-C
1-4
alkylcarbamoyl-C
1-4
alkoxy, or the like; R
3
is a C
1-4
alkyl; R
4
is a C
1-4
alkoxy, or the like; n is an integer of 1 to 4; or a salt thereof, as a thienopyrimidine compound having gonadotropin-releasing hormone antagonistic activity.
Substituted thieno[2,3-d]pyrimidin-2,4-dione compounds and uses thereof
申请人:Takeda Pharmaceutical Company Limited
公开号:US08058280B2
公开(公告)日:2011-11-15
The present invention provides a compound represented by the formula:
wherein R1 is a C1-4 alkyl; R2 is (1) a 5- to 7-membered nitrogen-containing heterocyclic group which may have a substituent selected from the group consisting of (1′) a halogen, (2′) a hydroxy group, (3′) a C1-4 alkyl and (4′) a C1-4 alkoxy, (2) a phenyl which may have a substituent selected from the group consisting of (1′) a halogen, (2′) a C1-4 alkoxy-C1-4 alkyl, (3′) a mono-C1-4 alkyl-carbamoyl-C1-4 alkyl, (4′) a C1-4 alkoxy and (5′) a mono-C1-4 alkylcarbamoyl-C1-4 alkoxy, or the like; R3 is a C1-4 alkyl; R4 is a C1-4 alkoxy, or the like; n is an integer of 1 to 4; or a salt thereof, as a thienopyrimidine compound having gonadotropin-releasing hormone antagonistic activity.
The present invention provides a premature ovulation inhibitor for use in in vitro fertilization or embryo transfer process, which contains a nonpeptidic compound having a gonadotropin releasing hormone antagonistic action. The premature ovulation inhibitor for use in in vitro fertilization or embryo transfer process of the present invention is low toxic, permits oral administration, and has a superior inhibitory effect on premature ovulation in in vitro fertilization or embryo transfer process.