19-Norlanosta-5,23-diene-3,11,22-trione, 2,16,20,25-tetrahydroxy-9-methyl-, (2.beta.,9.beta.,10.alpha.,16.alpha.,23E)- 19-nor-9.beta.,10.alpha.-Lanosta-5,23-diene-3,11,22-trione, 9-methyl-2.beta.,16.alpha.,20,25-tetrahydroxy- 3877-86-9 CUCURBITACIN D Cucurbitacine (D) Elatericin A NSC308606