摘要:
There are disclosed compounds of the general formula ##STR1## wherein all substituents are defined herein. The compounds are useful as antibiotic and antifungal agents.
摘要:
Cyclohexapeptidyl amine compounds are disclosed of the formula: or its acid addition salt, wherein: R1 is H or OH; R2 is H or OH; R3 is QCnH2nNRVRVI, QCnH2nNRVRVIRVII+Y−, or Q(CH2)1-3CRVIIIRIXNHRX. R4 is H or OH; R5 is H, OH or CH3; R6 is H or CH3; RI is wherein Ra is C1-C10 alkyl; or (CH2)qNRbRc wherein Rb and Rc are independently H, C1-C10 alkyl or Rb and Rc taken together are wherein Rd is C1-C16 alkyl, phenyl or benzyl; RII is H, C1-4 alkyl or benzyl; RIII is H, C1-4 alkyl or benzyl; RIV is RII and RIII taken together as —(CH2)4— or —(CH2)5—; RV is H, C1-C4 alkyl or benzyl; RVI is H, C1-C4 alkyl or benzyl or RV and RVI together is —(CH2)4— or —(CH2)5—; RVII is H or C1-C4 alkyl; RVIII is H, (CH2)mH, (CH2)mOH, (CH2)mNH2 or COX wherein X is NH2, OH or O(CH2)mH; RIX is H, (CH2)mH, or together with RVIII is ═O (carbonyl); RX is H (except when RVIII and RIX are H, C(═NH)NH2, C(═NH)CH2)0-3H, CO(CH2)0-3H, CO(CH2)mNH2, (CH2)2-4OH or (CH2)2-4NH2; Q is O or S; Y is an anion of a pharmaceutically acceptable salt each m is independently an integer from 1 to 3, inclusive; n is an integer from 2 to 4, inclusive; p is an integer from 1 to 2, inclusive and q is an integer from 2 to 4, inclusive.
摘要:
A compound having the formula ##STR1## in which R.sub.1 is an aminoalkyl group and ##STR2## is an acyl group and salts thereof having high antibiotic activity and being substantially free of lytic activity are described.
摘要:
Certain bisamine compounds which have a cyclohexapeptidyl nucleus and which are found to have antibiotic activity with physical properties suitable for direct use in therapeutic compositions are described. A novel process for their preparation is also described.
摘要:
The present invention relates to novel enfumafungin derivatives of formula I and pharmaceutically acceptable salts thereof, their synthesis, and their use as inhibitors of (1,3)-β-D-glucan synthase. The present compounds and pharmaceutically acceptable salts thereof, as well as pharmaceutical compositions comprising the present compounds and pharmaceutically acceptable salts thereof, are useful for treating or preventing antifungal infections and associated diseases and conditions.
摘要:
Ceretain aza cyclohexapeptide compounds have been found to have superior antibiotic properties. Novel processes for their preparation are also described.