A production method of a compound represented by the formula ##STR00001## wherein R.sup.1a, R.sup.1b, R.sup.1c, R.sup.1d, R.sup.1e, R.sup.1f, R.sup.2a, R.sup.2b, R.sup.2c, R.sup.2d, R.sup.2e and R.sup.2f are the same or different and each is a hydrogen atom and the like, and R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7, R.sup.8, R.sup.9 and R.sup.10 are the same or different and each is a hydrogen atom and the like, or a salt thereof, which comprises reacting a compound represented by the formula ##STR00002## wherein X is a leaving group and other symbols are as defined above, or a salt thereof, with a phosphine-borane complex represented by the formula ##STR00003## wherein the symbols are as defined above, or a salt thereof, in a solvent in the presence of an amine and a nickel catalyst, is provided.