Abstract: A subject of the invention is a process for the preparation of the compounds of formula (I): Wherein the substituents are defined as in the application. The compounds of this invention exhibit antibiotic properties.

Abstract: A subject of the invention is a process for the preparation of the compounds of formula (I): Wherein the substituents are defined as in the application. The compounds of this invention exhibit antibiotic properties.

Abstract: A subject of the invention is, as new chemical products, the compounds of formula (I) in which X represents a hydrogen atom or a halogen atom and Z represents a hydrogen atom or the remainder of an acid as well as their addition salts with acids. The compounds of formula (I) have antibiotic properties.

Abstract: Novel compounds of the formula 1

Abstract: A subject of the invention is, as new chemical products, the compounds of formula (I) in which X represents a hydrogen atom or a halogen atom and Z represents a hydrogen atom or the remainder of an acid as well as their addition salts with acids. The compounds of formula (I) have antibiotic properties.

Abstract: A subject of the invention is, as new chemical products, the compounds of formula (I) 1

Abstract: Novel compounds of the formula wherein the substituents are defined as in the application having antibiotic properties.

Abstract: A subject of the invention is, as new chemical products, the compounds of formula (I) 1

Abstract: The compounds of formula (I): ##STR1## in which R is a hydrogen atom, an alkyl, optionally substituted by a halogen atom or a (CH.sub.2).sub.m Ar radical or a ##STR2## in which m represents an integer (1-8), n and p, identical or different, represent an integer (0-6), A and B, identical or different, represent a hydrogen or a halogen or an alkyl and Ar represents an aryl or heteroaryl, and Z represents a hydrogen or the remainder of a carboxylic acid, preparation process and use as medicaments.

Abstract: Intermediates for the preparation of compounds selected from the group consisting of a compound of the formula ##STR1## wherein R is ##STR2## n is an integer from 3 to 5, Ar is an optionally substituted heterocyclic selected from the group consisting of

Abstract: A subject of the invention is the compounds of formula (I): ##STR1## in which: X represents a CH.sub.2 or SO.sub.2 radical or an oxygen atom, Y represents a (CH.sub.2).sub.m --(CH.dbd.CH).sub.n (CH.sub.2).sub.o radical, with m+n+o.ltoreq.8, n=0 or 1, Ar represents an aryl radical,W represents a hydrogen atom, or the remainder of a carbamate function.The compounds of formula (I) have useful antibiotic properties.

Abstract: A compound selected from the group consisting of a compound of the formula ##STR1## wherein R and R.sub.1 are --OH or --O-acyl of an organic carboxylic acid of 2 to 20 carbon atoms, R.sub.2 is hydrogen or methyl, R.sub.3 is --(CH.sub.2).sub.m --R.sub.4 or ##STR2## or --N--(CH.sub.2).sub.q --R.sub.4, m is an integer from 1 to 6, n, p and q are individually an integer from 0 to 6, A and B are individually selected from the group consisting of hydrogen, halogen and alkyl of 1 to 8 carbon atoms with the geometry of the double bond being E or Z or a mixture of E and Z or A and B form a triple bond, R.sub.4 is an optionally substituted mono- or polycyclic heterocycle and their non-toxic, pharmaceutically acceptable acid addition salts having antibiotic properties.

Abstract: Compounds of the formula ##STR1## wherein X and X' form C.dbd.O or C.dbd.NOR, R is selected from the group consisting of hydrogen, heterocycle, alkyl, alkenyl, alkynyl, all optionally substituted, ##STR2## R.sub.a and R.sub.b are hydrogen or a hydrocarbon group or form together with the nitrogen a heterocycle, or with A forms a 9-N, 11-O ring, and X' is hydrogen, --Y and Y' have the same definition as X and X', b is hydrogen or OR.sub.4, R.sub.4 is hydrogen or forms together with A a carbonate or a carbamate, A forms with C a double bond or A is OR'.sub.4, R'.sub.4 is hydrogen or forms together with B a carbonate or ##STR3## R.sub.2 is alkyl or --CONH.sub.2, --CONHCOR.sub.11 or --CONHSO.sub.2 R.sub.11, R.sub.11 is a hydrocarbon up to 18 carbon atoms, R.sub.3 is hydrogen, ##STR4## and Z is hydrogen or a carboxylic acid remainder and their non-toxic, pharmaceutically acceptable acid addition salts, their preparation and intermediates useful as antibiotics.

Abstract: A compound selected from the group consisting of a compound of the formula ##STR1## wherein R.sub.1 and R.sub.2 are individually selected from the group consisting of hydrogen and an optionally unsaturated hydrocarbon of up to 24 carbon atoms optionally interrupted by at least one heteroatom selected from the group consisting of oxygen, sulfur and nitrogen and optionally having at least one functional group or taken together form ##STR2## and R'.sub.1 and R'.sub.

Abstract: A compound selected from the group consisting of a compound of the formula ##STR1## wherein X is selected from the group consisting of --(NH).sub.a --, --CH.sub.2 --, --SO.sub.2 -- and --O--, a is 0 or 1, Y is --(CH.sub.2).sub.m - (CH.dbd.CH).sub.n --(CH.sub.2).sub.o -, m+n+o.ltoreq.8, n=o or 1, Ar is aryl optionally substituted with at least one member of the group consisting of --OH, halogen, --NO.sub.2, --CN, ##STR2## and alkyl, alkenyl, alkynyl, alkoxy, alkenyloxy, alkynyloxy, alkylthio, alkenylthio, alkynylthio, -N-alkyl, -N-alkenyl and N-alkynyl of up to 12 carbon atoms, R.sub.a and R.sub.b individually are hydrogen or alkyl of up to 12 carbon atoms, R.sub.

Abstract: A compound selected from the group consisting of a compound of the formula ##STR1## wherein R.sub.1 and R.sub.2 are individually selected from the group consisting of hydrogen and an optionally unsaturated hydrocarbon of up to 24 carbon atoms optionally interrupted by at least one heteroatom selected from the group consisting of oxygen, sulfur and nitrogen and optionally having at least one functional group or taken together form ##STR2## and R'.sub.1 and R'.sub.

Abstract: An erythromycin compound of Formula I or its non-toxic acid addition salt having antibiotic activity.

Abstract: Novel intermediates for the preparation of the compounds of Formula I wherein the substituents are as defined in the specification.

Abstract: Novel compounds of the formula wherein the substituents are defined as in the application having antibiotic properties.

Abstract: A subject of the invention is the compounds of formula (I): in which: X represents a CH2 or SO2 radical or an oxygen atom, Y represents a (CH2)m—(CH═CH)n(CH2)o radical, with m+n+o≦8, n=0 or 1, Ar represents an aryl radical, W represents a hydrogen atom, or the remainder of a carbamate function. The compounds of formula (I) have useful antibiotic properties.