preferred_name: [cypemycin](1-18)-L-Cys-L-Leu-L-Val-L-Cys + A => C(3,19),S(21)-[cypemycin](1-18)-L-Ala-L-Leu-N-thioethenyl-L-valinamide + hydrogen sulfide + AH2 + CO2
preferred_name_lc: [cypemycin](1-18)-l-cys-l-leu-l-val-l-cys + a => c(3,19),s(21)-[cypemycin](1-18)-l-ala-l-leu-n-thioethenyl-l-valinamide + hydrogen sulfide + ah2 + co2
label: [cypemycin](1-18)-L-Cys-L-Leu-L-Val-L-Cys + A => C(3,19),S(21)-[cypemycin](1-18)-L-Ala-L-Leu-N-thioethenyl-L-valinamide + hydrogen sulfide + AH2 + CO2
label_lc: [cypemycin](1-18)-l-cys-l-leu-l-val-l-cys + a => c(3,19),s(21)-[cypemycin](1-18)-l-ala-l-leu-n-thioethenyl-l-valinamide + hydrogen sulfide + ah2 + co2