Patent ID: 8399449

Claim:
A compound represented by formulas: wherein ring A 1 -ring A 20 optionally further have substituent(s), wherein the substituents are optionally bonded to each other to form a ring, —CH 2 —CH 2 — part constituting a ring in the ring A 1 , the ring A 7 , the ring A 8 , the ring A 9 , the ring A 10 , the ring A 11 , the ring A 12 , the ring A 14 , the ring A 15 , the ring A 16 , the ring A 17 , the ring A 18 , the ring A 19 , and the ring A 20 is optionally converted to —CH═CH—, —NH—CH 2 — part constituting a ring in the ring A 2 , the ring A 5 , the ring A 8 , the ring A 11 , the ring A 13 , the ring A 15 , the ring A 18 , and the ring A 20 is optionally converted to —N═CH—; X is O, S, or NR 1 , wherein R 1 is hydrogen or a hydrocarbon group optionally having substituent(s); R 2 is carbamoyl optionally having substituent(s); and R 3 is hydroxy or optionally substituted alkoxy, except the following compounds: or a salt thereof.