Patent ID: 7985744

Claim:
A compound of Formula (1): wherein X represents an oxygen atom; m is 1 R 1 and R 2 each represent a hydrogen atom or a C 1 -C 6 alkyl group, provided that when one of R 1 and R 2 is hydrogen, one of R 1 and R 2 should represent a methyl group; R 4 and R 5 together form a double bond between the 16- and 17-positions; R 3 represents —NR 9 R 10 (wherein R 9 represents a hydrogen atom, and R 10 represents a linear or branched C 1 -C 4 alkyl group which is substituted with 3 to 12 fluorine atoms; R 6 represents a hydroxyl group and R 7 represents a hydrogen atom.