21-(4-bromobenzenesulfonyloxy)-16α-methylpregna-1,4,9(11)-triene-3,20-dione 、 2,4-bis(cyclopentylamino)-6-(1-piperazinyl)-pyrimidine 以to obtain the title compound in a yield of 73.1%, m.p.:180°-185° C.的产率得到21-{4-[2,4-bis(cyclopentylamino)-6-pyrimidinyl]-1-piperazinyl}-16α-methyl-pregna-1,4,9(11)-triene-3,20-dione