The present invention relates to compounds of pharmaceutical interest. More particularly, it relates to compounds of formula (I), to processes for obtaining thereof, to the intermediates of their synthesis and processes for obtaining the latter. The compounds of formula (I) have a certain affinity with the vitamin D receptor, they are active in a similar order to 1,25α-dihydroxyvitamin D3 (1,25D), with the advantage of producing less or no hypercalcemia.