Echinocandin derivatives, method for preparing same and application as antifungal agents
A subject of the invention, in all possible isomer forms as well as their mixtures, is the compounds of formula (I): in which either R 1 : H or CH 3 and R 2 : cyclohexyl substituted by an amine, a (CH 2 )b-C≡N radical or R 1 and R 2 together with the nitrogen which carries them form a ring with 3, 4 or 5 carbons optionally substituted by an amine R 3 : hydrogen, methyl or hydroxyl R 4 : hydrogen or hydroxyl R: represents a linear, branched or cyclic chain T: hydrogen, methyl, CH 2 CONH 2 , CH 2 C≡N, a (CH 2 ) 2 NH 2 or (CH 2 ) 2 Nalk + X − radical, X halogen and alk alkyl Y: hydrogen, hydroxyl, halogen or OSO 3 H, W: H or OH, Z: H, CH 3 . The compounds of formula (I) have antifungal properties.
1. A compound selected from the group consisting of all possible stereoisomers of a compound of the formula
wherein R 1 is hydrogen or methyl, R 2 is selected from the group consisting of —CH 2 —CH 2 NHCH 3 ,
—CH 2 CH(CH 3 )NH 2 ,
—CH(CH 3 )CH 2 NH 2 , —(CH 2 ) a OH where a is an integer of 1 to 8, —(CH 2 ) b —C≡N where b is an integer of 1 to 8, —CH(CH 3 )C 6 H 5 , —(CH 2 )—C(CH 3 ) 2 NHCOCF 3 , and
—CH(CH 3 )(CH 2 ) d OH where d is an integer of 1 to 8,
R 3 is selected from the group consisting of hydrogen, methyl and hydroxyl,
R 4 is hydrogen or hydroxyl,
R is selected from the group consisting of a) alkyl and cycloalkyl of up to 30 carbon atoms optionally containing at least one heteroatom or at least one heterocycle, and b) acyl or cyclic acyl of up to 30 carbon atoms optionally containing at least one heteroatom or at least one heterocycle,
T is selected from the group consisting of hydrogen, methyl, —CH 2 CONH 2 ,
—CH 2 —C≡N, and —(CH 2 ) 2 NH 2 ,
Y is selected from the group consisting of hydrogen, hydroxyl, halogen and —OSO 3 H or a salt thereof,
W is hydrogen or OH,
Z is hydrogen or methyl; and
a non-toxic, pharmaceutically acceptable acid addition salt thereof.
2. The compound of claim 1 in which T is hydrogen.
3. The compound of claim 1 in which W is hydrogen.
4. The compound of claim 1 in which Z is methyl.
5. The compound of claim 1 in which Y is hydrogen.
6. The compound of claim 1 in which R 3 is methyl.
7. The compound of claim 1 in which R 4 is hydroxyl.
8. The compound of claim 1 in which R is selected from the group consisting of
9. The compound of claim 8 in which R is
10. The compound of claim 8 in which R is
11. The compound of claim 1 in which R 1 is hydrogen.
12. The compound of claim 1 in which R 2 is selected from the group consisting of
13. The compound of claim 1 in which R 2 is
14. The compound of claim 1 is 1-[4-[[(1H-benzimidazol-2-yl)-methyl]-amino]-N2-[[4′-(pentyloxy) [1,1′:4′, 1″ terphenyl]-4-yl]-carbonyl]-L-ornithine]-4-[4-(4-hydroxyphenyl)-L-threonine]-5-L-serine-echinocandin B trifluoroacetate (isomer B).
15. An antifungal composition comprising an antifungally effective amount of a compound of claim 14 and an inert pharmaceutical carrier.
16. A method of treating fungal infections in warm-blooded animals comprising administering to warm-blooded animals in need thereof an antifungally effective amount of a compound of claim 14 .