摘要:
A method of increasing the rigidity of PIM homo- or co-polymers including repeating units containing at least one biscatechol monomer having a fused spiro-bisindane (SBI) ring system of Formula (I), the SBI ring system including a bicyclic spiro-carbon: (I) wherein each R 1 can be the same or different, each R 2 can be the same or different and wherein R 1 and/or R 2 are selected from any one or more of H; straight or branched, saturated or unsaturated lower C 1 -C 6 alkyl groups, wherein the lower alkyl groups can include aromatic or non-aromatic ring structures; R 3 OR 4 , R 3 O(C=O)R 4 , R 3 C(=O)OR 4 , or R 3 OH, wherein each of R 3 and R 4 are the same or different and are selected from straight or branched, saturated or unsaturated lower C 1 - C 6 alkyl groups; and R 5 and R represent suitable linking monomers, wherein the linking monomers can be the same or different and are preferably selected from any one or more tetrahalo aromatic monomers; and wherein the method includes the step of introducing an intra- molecular lock between C1 and C2 of the biscatechol monomer of Formula (I).
摘要:
The present invention relates to natural brassinosteroids of general formula (I), wherein R is CH 2 or O-CH 2 group, R 2 is hydrogen or hydroxyl, R 3 is hydroxyl, R 24 is alkyl or alkenyl, which are selected from the group consisting of methyl, ethyl, propyl, isopropyl, methylen, ethylen and propylen, and R 25 is alkyl selected from the group consisting of methyl and ethyl, and a pharmaceutically acceptable salt thereof, for use for treating hyperproliferation, treating proliferative diseases and reducing adverse effects of steroid dysfunction in mammals. The present invention also provides methods capable to arrest of the cell cycle by natural brassinosteroids resulting in apoptotic changes in cancer cells. More specifically, the present invention relates to use for treatment of the adverse effects of hyperproliferation on mammalian cells in vitro and in vivo , especially treatment of hyperproliferative diseases in mammals by administering compositions containing natural brassinosteroids. This invention also describes new use for treating consisting in a new therapeutic way for modifying cell viability of human breast and prostate cancer cells.
摘要:
The present invention is directed to tetracyclic steroid derivatives, pharmaceutical compositions containing them and their use in the treatment of disorders and conditions modulated by a progesterone or glucocorticoid receptor.
摘要:
The present invention provides a compound of the formula (I) wherein R is -H, -OH, -O(C1-C4 alkyl), -OCOC6H5, -OCO(C1-C6 alkyl), or -OSO2(C2-C6 alkyl); R , R and R are each independently -H, -OH, -O(C1-C4 alkyl), -OCOC6H5, -OCO(C1-C6 alkyl), -OSO2(C2-C6 alkyl) or halo; R is 1-piperidinyl, 1-pyrrolidinyl, methyl-1-pyrrolidinyl, dimethyl-1-pyrrolidinyl, 4-morpholino, dimethylamino, diethylamino, diisopropylamino, or 1-hexamethyleneimino; n is 2 or 3 X is -S- or -HC=CH-; G is -O-, -S-, -SO-, SO2, or -N(R )-, wherein R is -H or C1-C4 alkyl; and Y is -O-, -S-, -NH-, -NMe-, or -CH2-; or a pharmaceutically acceptable salt thereof; pharmaceutical compositions thereof, optionally in combination with estrogen and progestin; methods of inhibiting a disease associated with estrogen deprivation; and methods for inhibiting a disease associated with an aberrant physiological response to endogenous estrogen.
摘要:
Compounds for formula (I) in which: Y represents O, NR , S, SO or SO2; X represents (CR R )m; X represents (CR R )n; one of m and n is 1 and the other is 0 or 1; and R , R , R and R are each as defined in the specification; and non-toxic metabolically labile esters or amides thereof; and pharmaceutically acceptable salts thereof; are useful as modulators of metabotropic glutamate receptor function.
摘要翻译:式(I)化合物,其中:Y表示O,NR a,S,SO或SO 2; X 1表示(CR 1 R 2)m; X 2表示(CR 3 R 4)n; m和n之一是1,另一个是0或1; R 1,R 2,R 3和R 4各自如说明书中所定义; 和无毒的代谢不稳定的酯或其酰胺; 及其药学上可接受的盐; 可用作代谢型谷氨酸受体功能的调节剂。
摘要:
The present invention provides a compound of the formula (I) wherein R 1 is -H, -OH, -O(C 1 -C 4 alkyl), -OCOC 6 H 5 , -OCO(C 1 -C 6 alkyl), or -OSO 2 (C 2 -C 6 alkyl); R 0 , R 2 and R 3 are each independently -H, -OH, -O(C 1 -C 4 alkyl), -OCOC 6 H 5 , -OCO(C 1 -C 6 alkyl), -OSO 2 (C 2 -C 6 alkyl) or halo; R 4 is 1-piperidinyl, 1-pyrrolidinyl, methyl-1-pyrrolidinyl, dimethyl-1-pyrrolidinyl, 4-morpholino, dimethylamino, diethylamino, diisopropylamino, or 1-hexamethyleneimino; n is 2 or 3 X is -S- or -HC=CH-; G is -O-, -S-, -SO-, SO 2 , or -N(R 5 )-, wherein R 5 is -H or C 1 -C 4 alkyl; and Y is -O-, -S-, -NH-, -NMe-, or -CH 2 -; or a pharmaceutically acceptable salt thereof; pharmaceutical compositions thereof, optionally in combination with estrogen and progestin; methods of inhibiting a disease associated with estrogen deprivation; and methods for inhibiting a disease associated with an aberrant physiological response to endogenous estrogen.
摘要:
A process for the preparation of esters or lactones, which comprises reacting a ketone represented by general formula (1) (wherein Ra and Rb are each independently an organic group having a carbon atom at the position where the carbonyl carbon atom adjacent thereto is bonded, or alternatively Ra and Rb together with the carbonyl carbon atom may form a ring) with hydrogen peroxide in the presence of a compound containing a metallic element selected from among Group 3, 13, 14 and 15 metallic elements of the periodic table to thereby obtain a compound represented by general formula (2) (wherein Ra and Rb are each independently an organic group having a carbon atom at the position where the carbonyl carbon atom or oxygen atom adjacent thereto is bonded, or alternatively Ra and Rb together with the carbonyl carbon atom and the oxygen atom may form a ring). This process makes it possible to convert ketones to the corresponding esters or lactones in high yield by using hydrogen peroxide.