Abstract:
A novel agent for introducing a protecting group for a hydroxy group and/or a mercapto group that can be introduced and removed under mild conditions is provided. The agent for introducing a protecting group for a hydroxy group and/or mercapto group of a substrate compound having the hydroxy group and/or mercapto group is represented by the following formula (I), wherein A represents a ring structure having 1 to 5 rings in which two carbon atoms of an adjacent benzene ring are included, the ring structure comprises a substituted or unsubstituted five-membered ring or six-membered ring and optionally include a heterocycle; each of R 1 , R 2 , R 3 , and R 4 is independently a hydrogen atom or a linear or branched alkyl group having 1 to 5 carbon atoms; and X is a halogen atom or OSO 2 R 5 (R 5 = an aryl group or an alkyl group) .
Abstract:
The present invention relates to new compounds of formula (I) wherein the variables have the meaning as indicated in the claims; in free form and in salt form; and optionally the enantiomers and geometrical isomers thereof. The compounds of formula (I) are useful in the control of parasites, in particular ectoparasites, in and on vertebrates.
Abstract:
Disclosed herein are non-natural amino acids and polypeptides that include at least one non-natural amino acid, and methods for making such non-natural amino acids and polypeptides. The non-natural amino acids, by themselves or as a part of a polypeptide, can include a wide range of possible functionalities, but typical have at least one oxime, carbonyl, dicarbonyl, and/or hydroxylamine group. Also disclosed herein are non-natural amino acid polypeptides that are further modified post-translationally, methods for effecting such modifications, and methods for purifying such polypeptides. Typically, the modified non-natural amino acid polypeptides include at least one oximine, carbonyl, dicarbonyl, and/or hydroxylamine group. Further disclosed are methods for using such non-natural amino acid polypeptides and modified non-natural amino acid polypeptides, including therapeutic, diagnostic, and other biotechnology uses.
Abstract:
The present invention relates to novel methods for the preparation of intermediates which are useful in the synthesis of cacipotriol. The present invention relates further to the use of intermediates produced with said methods for making calcipotriol or calcipotriol monohydrate.
Abstract:
The present invention relates to a selective estrogen receptor modulator of formula I or a pharmaceutical acid addition salt thereof; useful, e.g., for treating endometriosis and/or uterine leiomyoma/leiomyomata.
Abstract:
The invention relates to non-steroidal gestagens of general formula (I), wherein R?1 and R2¿ are the same or different and stand for a hydrogen atom, a C¿1?-C5 alkyl group or a halogen atom, or together with the C atom of the chain stand for a ring with 3-7 units, R?3¿ means a C¿1?-C5 alkyl group or a partially or fully fluorinated C1-C5 alkyl group, A stands for an optionally substituted mono or bi-cyclic aromatic ring, an ester group -COOR?4¿, an alkenyl group -CR5=CR6R7, an alkinyl group -C CR5 or for a partially or fully fluorinated C¿1?-C5 alkyl group, B means a carbonyl group or a CH2 group and Ar is a ring system selected from the group of general partial formulae (2-11). When B represents a CH2 group in general formula (I), Ar additionally means a phenyl radical of partial general formula (12). The novel compounds display a very strong affinity to the gestagen receptor. They can be used on their own or in combination with oestrogen's in contraceptive preparations. They can also be used in the treatment of endometriosis. They can be used with oestrogen's in preparations for the treatment of gynaecological disorders. They can also be used to treat pre-menstrual complaints and in substitution therapy. Their androgen activity enables them to be used for male fertility control, male HRT and to treat andrological syndromes.
Abstract:
Compounds of formula (I), wherein A is a 5-membered optionally substituted, heteroaryl group comprising at least one hetero atom selected from nitrogen, sulfur and oxygen, which is optionally substituted by one or more of the group R2; R1 is alkyl, cycloakyl, cycloalkenyl, alkenyl, alkynyl, or amino (each of which is optionally substituted), Y1-X-, halogen, cyano, nitro, acyl, acyloxy, optionally substituted heterocyclyl or optionally substituted phenyl; or two adjacent groups together with the carbon atoms to which they are attached can form an optionally substituted benzo ring; R2 has the same meaning as R1 or two adjacent groups together with the carbon atoms to which they are attached can form an optionally substituted heterocyclic ring; Y is alkyl, cycloalkyl, cycloalkenyl, alkenyl or alkynyl, each of which is optionally substituted, hydrogen or acyl; Y1 has the same meaning as Y or is optionally substituted phenyl or optionally substituted heterocyclyl; Z is C(=X?1)-X2-R3¿, cyano, nitro, amino, acyl, optionally substituted heterocyclyl, -C(R?5)=N-OR6¿ or -C(R?5)=N-NR6R7; R3¿ is alkyl, cycloalkyl, cycloalkenyl, alkenyl, alkynyl, phenyl or heterocyclyl, each of which is optionally substituted, hydrogen or an inorganic or organic cationic group; X?1 and X2¿, which may be the same or different, are O or S; R?5, R6 and R7¿ which may be the same or different, are alkyl, cycloalkyl, cycloalkenyl, alkenyl, alkynyl, phenyl or heterocyclyl, each of which is optionally substituted or hydrogen or R?6 and R7¿ together with the atom(s) to which they are attached can form a ring; and n is 0 to 4, have fungicidal activity.