Sintesis dan studi aktivitas antiinflamasi in vitro senyawa (2E,6E)-2-[(4-hidroksi-3-metoksifenil)metiliden]-6-[(4 metoksifenil)metiliden]sikloheksan-1-on tersubstitusi basa mannich dibutilamin = Synthesis and study of in vitro antiinflamation activity of (2E,6E)-2-[(4-hydroxy-3-methoxyphenyl)methyliden]-6-[(4-methoxyphenyl)methyliden]-cyclohexan-1-on substituted by mannich base dibutylamine