摘要:
3-De-O-methyl-2'-N-acyl and alkyl fortimicin B derivatives represented by the formula ##STR1## wherein R is acyl, aminoacyl, N-monoloweralkylaminoacyl, N,N-diloweralkylaminoacyl, hydroxy-substituted aminoacyl, hydroxyacyl, an amino acid residue, loweralkyl, aminoloweralkyl, hydroxyloweralkyl, N-loweralkylaminoloweralkyl, N,N-diloweralkylaminoloweralkyl, aminohydroxyloweralkyl, N-loweralkylaminohydroxyloweralkyl N,N-diloweralkylaminohydroxyloweralkyl; and R.sub.1 is acyl, aminoacyl, N-monoloweralkylaminoacyl, N,N-diloweralkylaminoacyl, hydroxy-substituted aminoacyl, an amino acid residue, hydroxyacyl, loweralkyl, aminoloweralkyl, hydroxyloweralkyl, N-loweralkylaminoloweralkyl, N,N-diloweralkylaminoloweralkyl, aminohydroxyloweralkyl, N-loweralkylaminohydroxyloweralkyl, N,N-diloweralkylaminohydroxyloweralkyl, hydrogen; the pharmaceutically acceptable salts thereof; pharmaceutical compositions containing the compounds; and methods of making and using the compounds. The compounds are antibiotics.
摘要:
Disclosed are 2-deoxy-2-substituted fortimicin A and B derivatives represented by the formula ##STR1## wherein R is hydrogen glycyl, .beta.-alanyl, acetyl, or .beta.-amino lower alkyl, R.sub.1 is hydrogen, amino, azido, halo, glycylamido, .beta.-alanyl amido or 2-O-methanesulfonyl and R.sub.2 is hydrogen or halo and their pharmaceutically acceptable salts. The compounds are active antibacterial agents.
摘要:
A 1,5-fortimicin B carbamate represented by the formula: ##STR1## wherein each R is hydrogen or monocyclicaryloxycarbonyl and R.sub.1 is selected from the group consisting of: loweralkyl, hydroxyloweralkyl, hydrogen, aminoloweralkyl, N-loweralkylaminoloweralkyl, N,N-diloweralkylaminoloweralkyl, trihaloalkoxycarbonyl, an amino acid residue and an N-protected amino acid residue and the pharmaceutically acceptable salts thereof.
摘要:
6'-Epi-fortimicin A and B derivatives represented by the formula ##STR1## wherein R.sub.1 is hydrogen or loweralkyl, R.sub.2 is hydrogen or loweralkyl and R.sub.3 is selected from the group consisting of hydrogen, loweralkyl, aminoloweralkyl, N-loweralkylaminoloweralkyl, N,N-diloweralkylaminoloweralkyl, aminohydroxyloweralkyl, N-loweralkylaminohydroxyloweralkyl, hydroxyloweralkyl, acyl, aminoacyl, hydroxyacyl, N-monoloweralkylaminoacyl, N,N-diloweralkylaminoacyl, hydroxy-substituted aminoacyl or an amino acid residue; the pharmaceutically acceptable salts thereof; intermediates useful in their preparation, compositions employing the compounds; and methods of using the compounds. The compounds are useful as antibiotics.
摘要:
Novel fortimicin derivatives represented by the formula ##STR1## wherein: R is acyl, aminoacyl, N-monoloweralkylaminoacyl, N,N-diloweralkylaminoacyl, hydroxy-substituted aminoacyl, hydroxyacyl, an amino acid residue, loweralkyl, aminoloweralkyl, hydroxyloweralkyl, N-loweralkylaminoloweralkyl, N,N-diloweralkylaminoloweralkyl, aminohydroxyloweralkyl, N-loweralkylaminohydroxyloweralkyl or N,N-diloweralkylaminohydroxyloweralkyl; R.sub.1 is loweralkyl, R.sub.2 is hydrogen or lower alkyl; and R.sub.3 is acyl, aminoacyl, N-monoloweralkylaminoacyl, N,N-diloweralkylaminoacyl, hydroxy-substituted aminoacyl, hydroxyacyl, an amino acid residue, loweralkyl, aminoloweralkyl, hydroxyloweralkyl, N-loweralkylaminoloweralkyl, N,N-diloweralkylaminoloweralkyl, aminohydroxyloweralkyl, N-loweralkylaminohydroxyloweralkyl, N,N-diloweralkylaminohydroxyloweralkyl or hydrogen and the pharmaceutically acceptable salts thereof; pharmaceutical compositions containing the compounds; and methods of making and using the compounds. The compounds are useful as antibiotics.
摘要:
4-N-Acyl, 2'-N-acyl and 4,2' -N,N' -diacylfortimicin E derivatives represented by the formula ##STR1## wherein R is hydrogen, acyl, aminoacyl, N-lower alkylamino acyl, N,N-diloweralkylaminoacyl, hydroxy-substituted aminoacyl or an amino acid residue; R.sub.1 is hydrogen, acyl, aminoacyl, N-loweralkylaminoacyl, N,N-diloweralkylaminoacyl, hydroxy-substituted aminoacyl or an amino acid residue, with the limitation that R cannot be hydrogen when R.sub.1 is hydrogen, and R.sub.1 cannot be hydrogen when R is hydrogen; the pharmaceutically acceptable salts thereof; intermediates therefor; pharmaceutical compositions; and methods of making and using the compounds. The compounds are useful as antibiotics.
摘要:
Described are 3-de-O-methylfortimicins A and B and 4-N-acyl and 4-N-alkyl-3-de-O-methylfortimicin B derivatives, and their preparation, which compounds are useful as antibiotics or as intermediates for preparing other useful derivatives having antibacterial activity. The compounds have the following structural formula ##STR1## wherein R is hydrogen, acyl, aminoacyl, N-monoloweralkylaminoacyl, N.N-diloweralkylaminoacyl, hydroxy-substituted aminoacyl, alkyl, aminoalkyl, N-monoloweralkylaminoalkyl, N.N-diloweralkylaminoalkyl or hydroxy-substituted aminoalkyl and the pharmaceutically acceptable salts thereof, for example, salts formed from hydrochloric, sulfuric, and phosphoric acids.
摘要:
A new fortimicin antibiotic, 2-deoxyfortimicin B, intermediates useful in the preparation of the compound, methods of making and using the compound and compositions containing 2-deoxyfortimicin B.
摘要:
A new fortimicin antibiotic, 2-deoxyfortimicin B, intermediates useful in the preparation of the compound, methods of making and using the compound and compositions containing 2-deoxyfortimicin B.
摘要:
2',6'-Di-N-benzyloxycarbonylfortimicin B-1,2:4,5-bis-carbamate and fortimicin B-1,2:4,5-bis-carbamate and its salt are provided by the present invention. The compound is represented by the formula ##STR1## wherein each R is either hydrogen or benzyloxycarbonyl The bis-carbamate is useful as in intermediate in the preparation of fortamine bis-carbamate, which in turn is useful as an intermediate in the preparation of aminoglycoside antibiotics via glycosidation with suitably protected sugar moieties.