| abstract |
(57) [Summary] (Modified) [PROBLEMS] To provide a method for conveniently screening an ovulation inducer and an ovulation inducer found by the method. Ovulation induction which is determined to be effective as an ovulation inducer by enhancing or modifying vascular proliferation or permeability, or enhancing or modifying biological activity of growth / differentiation factors, growth hormones or cytokines Agent screening method and compound of formula (1) or formula (2). [Wherein, R 1 to R 8 each independently represent hydrogen or a lower alkyl group; X is —NH—, —N (CH 3 ) —, —N (C 2 H 5) -, CH 2 - , - CH (CH 3) -, - CH (C 2 H 5 )-, -O-, or -S-] is shown. |