A compound of the formula (I):
1
wherein X
1
and X
2
are the same or different and each is a bond or a spacer having 1 to 20 atom(s) in the main chain;
one of R
1
and R
2
is a cycle group having substituent(s) selected from 1) an optionally substituted carboxy-C
1-6
alkoxy group and 2) an optionally substituted carboxy-C
1-6
aliphatic hydrocarbon group, wherein the cycle group optionally has additional substituent(s), and the other is an optionally substituted cycle group or a hydrogen atom; and
R
3
, R
4
and R
5
are the same or different and each is a hydrogen atom or a substituent, or R
4
may link together with R
3
or R
5
to form an optionally substituted ring;
provided that when R
3
is a hydrogen atom, R
4
is a hydrogen atom and R
5
is methyl, X
2
—R
2
is not 4-cyclohexylphenyl; when R
3
is 4-methoxyphenyl, R
4
is a hydrogen atom and R
5
is methyl, X
2
—R
2
is not 4-methoxyphenyl; and when R
1
or R
2
is a hydrogen atom, the adjacent X
1
or X
2
is not a C
1-7
alkylene;
or a salt thereof exhibits a protein tyrosine phosphatase inhibitory action and is useful as a prophylactic or therapeutic agent for diabetes or the like.
Lipid nanoparticle compositions for delivery of nucleic acids are described. The lipid nanoparticle may contain a conformationally constrained ionizable lipid as part of the composition. These compositions may allow for delivery of cargo without the need for a targeting ligand.
The invention relates to D-homo-17-chlor-16(17)-ene steroids of formula I with androgenic activity
process for their production and pharmaceutical compositions that contain these compounds, as well as their use for the production of pharmaceutical agents.
17Alpha fluoroalkyl steroids, method for producing the same and pharmaceutical compositions containing said compounds
申请人:——
公开号:US20040024231A1
公开(公告)日:2004-02-05
The invention relates to 17&agr; fluoroalkyl steroids of the general formula (I). STEROID (I), wherein R
3
represents a group of the formula CnFmHo, wherein n=1, 2, 3, 4, 5 or 6, m>1 and m+o=2n+1. The invention further relates to methods for producing the same and to compositions that contain said compounds. The inventive composition of the general formula (I) possess androgenic activity.
1
A compound having a triptycene moiety represented by formula (1) is disclosed. In the formula, A
1
and A
2
represent —S—, —O—, —CO—, or —NR—; R
1
and R
3
represent a substituent; n is an integer from 0 to 2; R
4
and R
5
an electron-withdrawing group having a Hammett's substituent constant σ
p
of equal to or more than 0; L
11
, L
12
, L
21
and L
22
represent a single bond or a divalent group selected from the group consisting of —O—, —S—, —S(═O)
2
—, —CO—, —OCO—, —COO—, —OCOO— and —NR
A
— where R
A
represents a C
1-7
alkyl group or hydrogen atom, —CH
2
— and any combinations thereof; Z
1
and Z
2
represent a divalent 5- or 6-membered cyclic linking group; R
21
and R
22
represent a hydrogen atom or substituted or non-substituted alkyl group; and m1 and m2 each respectively represent an integer of from 0 to 2.