Abstract: The present invention relates to compounds selected from the group consisting of 14-0-[((Mono- or dialkylamino)-cycloalkylsulfanyl- or -cycloalkyl-oxy)-acetyl, -thioacetyl or -imino-oxy]-mutilins, 14-O-[((Cycloalkyl- or heterocyclylamino)-cycloalkylsulfanyl- or -cycloalkyl-oxy)-acetyl, -thioaceyl or -imino-oxy]-mutilins, 14-O-[((Heterocyc-N-yl-cycloalkyl)-sulfanyl- or -oxy)-acetyl, -thioacetyl or -imino-oxy]-mutilins, 14-O-[(((Mono- or dialkylamino)-cycloalkyl)-alkylsulfanyl- or -alkyl-oxy)-acetyl, -thioacetyl or -imino-oxy]-mutilins, 14-O-[(((Cycloalkyl- or heterocyclylamino)-cycloalkyl)-alkylsulfanyl- or -alkyl-oxy)-acetyl, -thioacetyl or -imino-oxy]-mutilins, and 14-O-[((Heterocyc-N-yl-cycloalkyl)-alkylsulfanyl- or -alkyl-oxy)-acetyl, -thioacetyl or -imino-oxy]-mutilins, and their use as pharmaceuticals.

Abstract: A method of preventing or treating diseases caused by Mycobacterium, comprising administering to a subject in need of such treatment an effective amount of a pleuromutilin.

Abstract: A method of preventing or treating diseases caused by Mycobacterium, comprising administering to a subject in need of such treatment an effective amount of a pleuromutilin.

Abstract: Compounds of formula wherein R1 and R1? are hydrogen or deuterium, R2, R3 and R4 are hydrogen or deuterium, R5 is the residue of an amino acid, X is S or N-ALK, is piperidinyl or tetrahydropyridinyl, ALK is (C1-4)alkyl, and R6 is hydrogen, hydroxy or (C2-12)acyloxy, and their use as antimicrobials.

Abstract: A compound of formula (I) wherein R and R2 and the attached nitrogen atom form pyrrolidinyl or piperidinyl. R1 is a group of formula (II). R3 and R?3 are hydrogen, deuterium or halogen. R4, R5 and R10 are independently of each other hydrogen or alkyl. R6, R7 and R8 are hydrogen or deuterium. R9 is amino, alkyl, aryl, heterocyclyl or mercapto. If X is oxygen, R9 is additionally hydrogen; R?10 is alkyl, X is sulphur, oxygen, NR10, or N+(R?10)2; Y is sulphur or oxygen, and m is 0, 1 or 2, with the proviso that, when R and R2 and the attached nitrogen atom form piperidinyl, m is O, Y is S and Y is attached in position 3 of the piperidine ring, that group of formula (I) which is attached to the piperidine ring via the residue Y is either in the (S)-configuration or in the (R)-configuration, preferably in the (S)-configuration which is useful as antimicrobial, antibacterial.

Abstract: A compound of formula (I) wherein R and R2 and the attached nitrogen atom form pyrrolidinyl or piperidinyl. R1 is a group of formula (II). R3 and R?3 are hydrogen, deuterium or halogen. R4, R5 and R10 are independently of each other hydrogen or alkyl. R6, R7 and R8 are hydrogen or deuterium. R9 is amino, alkyl, aryl, heterocyclyl or mercapto. If X is oxygen, R9 is additionally hydrogen; R?10 is alkyl, X is sulphur, oxygen, NR10, or N+(R?10)2; Y is sulphur or oxygen, and m is 0,1 or 2, with the proviso that, when R and R2 and the attached nitrogen atom form piperidinyl, m is O, Y is S and Y is attached in position 3 of the piperidine ring, that group of formula (I) which is attached to the piperidine ring via the residue Y is either in the (S)-configuration or in the (R)-configuration, preferably in the (S)-configuration which is useful as antimicrobial, antibacterial.

Abstract: A compound of formula wherein R2 is arylene or heterocyclene; or R and R2 together with the nitrogen atom to which they are attached form non-aromatic heterocyclene; and the other residues have various meanings, useful as pharmaceuticals, e.g. antimicrobials.

Abstract: The present invention relates to compounds selected from the group consisting of 14-0-[((Mono- or dialkylamino)-cycloalkylsulfanyl- or -cycloalkyl-oxy)-acetyl, -thioacetyl or -imino-oxy]-mutilins, 14-O-[((Cycloalkyl- or heterocyclylamino)-cy-cloalkylsulfanyl- or -cycloalkyl-oxy)-acetyl, -thioaceyl or -imino-oxy]-mutilins, 14-O-[((Heterocyc-N-yl-cycloalkyl)-sulfanyl- or -oxy)-acetyl, -thioacetyl or -imino-oxy]-mutilins, 14-O-[(((Mono- or dialkylamino)-cycloalkyl)-alkylsulfanyl- or -alkyl-oxy)-acetyl, -thioacetyl or -imino-oxy]-mutilins, 14-O-[(((Cycloalkyl- or heterocyclylamino)-cycloalkyl)-alkylsulfanyl- or -alkyl-oxy)-acetyl, -thioacetyl or -imino-oxy]-mutilins, and 14-O-[((Heterocyc-N-yl-cycloalkyl)-alkylsulfanyl- or -alkyl-oxy)-acetyl, -thioacetyl or -imino-oxy]-mutilins, and their use as pharmaceuticals.

Abstract: A method of preventing or treating diseases caused by Mycobacterium, comprising administering to a subject in need of such treatment an effective amount of a pleuromutilin.

Abstract: A compound of formula (I) wherein R and R2 together with the nitrogen atom to which they are attached form pyrrolidinyl or piperidinyl, R1 is a group of formula (II) R3 and R?3 are hydrogen, deuterium or halogen, R4, R5 and R10 are independently of each other hydrogen or alkyl, R6, R7 and R8 are hydrogen or deuterium; R9 is amino, alkyl, aryl, heterocyclyl or mercapto; and, if X is oxygen, R9 is additionally hydrogen; R10 is alkyl, X is sulphur, oxygen, NR10, or N+(R?10)2; Y is sulphur or oxygen, and m is 0,1 or 2; with the proviso that, when R and R2 together with the nitrogen atom to which they are attached form piperidinyl, m is O, Y is S and Y is attached in position 3 of said piperidine ring, that group of formula (I) which is attached to the piperidine ring via the residue Y is either in the (S)-configuration or in the (R)-conflguration, preferably in the (S)-configuration which is e.g. useful as antimicrobial, antibacterial.

Abstract: A compound of formula (I) wherein R and R2 together with the nitrogen atom to which they are attached form pyrrolidinyl or piperidinyl, R1 is a group of formula (II) R3 and R?3 are hydrogen, deuterium or halogen, R4, R5 and R10 are independently of each other hydrogen or alkyl, R6, R7 and R8 are hydrogen or deuterium; R9 is amino, alkyl, aryl, heterocyclyl or mercapto; and, if X is oxygen, R9 is additionally hydrogen; R?10 is alkyl, X is sulphur, oxygen, NR10, or N+(R?10)2; Y is sulphur or oxygen, and m is 0, 1 or 2; with the proviso that, when R and R2 together with the nitrogen atom to which they are attached form piperidinyl, m is O, Y is S and Y is attached in position 3 of said piperidine ring, that group of formula (I) which is attached to the piperidine ring via the residue Y is either in the (S)-configuration or in the (R)-configuration, preferably in the (S) -configuration which is e.g. useful as antimicrobial, antibacterial.

Abstract: Compounds of formula wherein R1 and R1? are hydrogen or deuterium, R2, R3 and R4 are hydrogen or deuterium, R5 is the residue of an amino acid, X is S or N-ALK, is piperidinyl or tetrahydropyridinyl, ALK is (C1-4)alkyl, and R6 is hydrogen, hydroxy or (C2-12)acyloxy, and their use as antimicrobials

Abstract: A method of preventing or treating diseases caused by Mycobacterium, comprising administering to a subject in need of such treatment an effective amount of a pleuromutilin.

Abstract: A compound of formula 1

Abstract: A compound of formula (I) wherein R2 is arylene or heterocyclene; or R and R2 together with the nitrogen atom to which they are attached form non-aromatic heterocyclene; and the other residues have various meanings, useful as pharmaceuticals, e.g. antimicrobials.

Abstract: A compound selected from 14—O—[(cycloalkyl-sulfanyl)acetyl]mutilins; 14—O—[(cycloalkyl-alkyl-sulfanyl)acetyl] mutilins; 14—O—[(cycloalkoxy)acetyl] mutilins; and 14—O—[(cycloalkyl-alkoxy)acetyl] mutilins and its use as a pharmaceutical.

Abstract: A compound of formula (I) wherein R and R2 together with the nitrogen atom to which they are attached form pyrrolidinyl or piperidinyl, R1 is a group of formula (II) R3 and R′3 are hydrogen, deuterium or halogen, R4, R5 and R10 are independently of each other hydrogen or alkyl, R6, R7 and R8 are hydrogen or deuterium; R9 is amino, alkyl, aryl, heterocyclyl or mercapto; and, if X is oxygen, R9 is additionally hydrogen; R′10 is alkyl, X is sulphur, oxygen, NR10, or N+(R′10)2; Y is sulphur or oxygen, and m is 0, 1 or 2; with the proviso that, when R and R2 together with the nitrogen atom to which they are attached form piperidinyl, m is O, Y is S and Y is attached in position 3 of said piperidine ring, that group of formula (I) which is attached to the piperidine ring via the residue Y is either in the (S)-configuration or in the (R)-configuration, preferably in the (S) -configuration which is e.g. useful as antimicrobial, antibacterial.

Abstract: A compound selected from 14—O—[(cycloalkyl-sulfanyl)acetyl]mutilins; 14—O—[(cycloalkyl-alkyl-sulfanyl)acetyl] mutilins; 14—O—[(cycloalkoxy)acetyl] mutilins; and 14—O—[(cycloalkyl-alkoxy)acetyl] mutilins and its use as a pharmaceutical.

Abstract: A compound of formula I ##STR1## wherein R.sub.1 represents ethyl or vinyl andR.sub.2 represents a five membered saturated heterocycle or aminoalkyl unsubstituted or substituted in its alkyl moiety by hydroxy,in free or in the form of an acid addition or quaternary salt, which compounds are indicated for use as chemotherapeutic agents e.g. as anti-bacterially active antibiotics and as veterinary agents e.g. in combatting microorganism infections and promoting growth in domestic animals.

Abstract: Novel pleuromutilin derivatives of formula I, ##STR1## in which R.sub.1 is ethyl or vinyl,m is 0 or 1, andR.sub.2 is a heterocyclic radical, in which a 5- or 6-membered, unsaturated or saturated heterocyclic ring containing one or more hetero atoms selected from oxygen, sulphur and nitrogen, is attached to the --S(CH.sub.2).sub.m --group,provided that when m is 0, R.sub.2 is other than pyridyl,their production and use as antimicrobial agents are described.