INDANONE DERIVATIVE, ITS PHARMACEUTALLY ACCEPTABLE SALT OR ENANTIOMER, METHOD FOR ITS PRODUCTION AND CONTAINING ITS PHARMACEUTICAL COMPOSITION FOR PREVENTION OR TREATMENT OF VIRAL DISEASE
1. The indanone derivative represented by the following chemical formula 1, a pharmaceutically acceptable salt thereof or an optical isomer thereof: [Chemical formula 1], wherein A, A, A and An are independently or optionally selected from the group consisting of —H, halogen, —OH, —CN , -N, C-Calkoxy, straight or branched C-C 1-6 alkyl, unsubstituted or substituted with -OH or methoxyphenylalkyl of 5-7 membered heterocycloalkyl, C-Caryl, -O (C = O) R, - (C = O) R, - (C = O) OR, -O (C = O) OR, -O (C = O) NRR, -NO, -NRR, -NR (C = O) R, -NR (C = S) R, -NR (C = O) OR, -NR (C = O) NRR, -NR (SO) R and -NR (C = S) NRR, or two or more adjacent substituents A, A, A and A together ring; D is —OH, halogen, straight or branched C — C alkyl, unsubstituted or substituted with phenyl C — C alkoxy, —O (CH) nOH, —O (C = O) R, - (C = O) R, - (C = O) OR, -O (C = O) OR, -O (C = O) NRR, -NO, -NRR, -NR (O) R, -NR (C = O) R, -NR (C = S) R, -NR (C = O) OR, -NR (C = O) NRR or -NR (C = S) NRR; E is halogen, -OH, -CN, -N = C = O , -N, C-alkoxy, -O (C = O) R, - (C = O) R, - (C = O) OR, -O (C = O) OR, -O (C = O) NRR , -NO, -NRR, -NR (C = O) R, -NR (C = S) R, -NR (C = O) OR, -NR (C = O) NRR, -NR (C = O) NROR, -NR (SO) R, -NR (C = S) NRR, -NR (P = O) (OR) or; G, G, G and G are independently or optionally selected from the group consisting of -H, halogen, - OH, CN, C 1 -C 4 alkoxy, straight or branched C 1 -C 1-6 alkyl, C 1 -Caryl, -O (C = O) R, - (C = O) R, - (C = O) OR, - (CH) - ( C = O) OR, -O (C = O) OR, -O (C = O) NRR, -NO, -NRR, -NR (C = O) R, - NR (C = S) R, -NR (C = O) OR, -NR (C = O) NRR and -NR (C = S) NRR, or two or more adjacent substituents G, G, G and G together can form a ring ; X represents hydrogen, oxygen, sulfur, hydroxy, linear or branched C-C1-6 alkyl, linear or branched C-C1-6 alkylene, = N-NRR, -NR-OR or = N-OR; Y represents -O-, -CH- , -NH- or - (NR) -; R is - (C = O) H, - (C = O) OH, - (C = O) R, - (C = S) R or - (C = O) OR; Z is C or N; R, R, R, and R are independently hy