?? ???? ???? ?????? (2-??????-D-????? 2dDR) ????? ???? ????? ????? ???????. ?????? ??? ?????? ????? ??? ????? ????? ?????. ???? ?????? (2-??????-D-????? 2dDR) ??? ??????? ??????? ????? ???????. (2-DEOXIRIBO-D) : ?? ???? ??????? ??? ????? ??????? ??? ?????? ????? ????????? ?????? ??????? ?? ???? ?????? ?????????? ????? ?????? ??????? ??