pneumocandin B0 homodetic cyclic peptide caspofungin 1-[(4R,5S)-5-[(2-aminoethyl)amino]-N(2)-(10,12-dimethyl-1-oxotetradecyl)-4-hydroxy-L-ornithine]-5-[(3R)-3-hydroxy-L-ornithine]-pneumocandin B0 (4R,5S)-5-((2-aminoethyl)amino)-N(2)-(10,12-dimethyltetradecanoyl)-4-hydroxy-L-ornithyl-L-threonyl-trans-4-hydroxy-L-prolyl-(S)-4-hydroxy-4-(p-hydroxyphenyl)-L-threonyl-threo-3-hydroxy-L-ornithyl-trans-3-hydroxy-L-proline cyclic (6-1)-peptide CHEBI:599509 A semisynthetic cyclic hexapeptide echinocandin antibiotic which exerts its effect by inhibiting the synthesis of 1,3-β-<small>D</small>-glucan, an integral component of the fungal cell wall. CHEBI:474180 Caspofungin chebi_ontology echinocandin semisynthetic derivative antibiotic antifungal drug