19-nor-vitamin D analogs having an additional cyclopentene ring connecting carbon 1 and carbon 2, or connecting carbon 3 and carbon-2 of the A-ring of the analog, and pharmaceutical uses therefore, are described. These compounds exhibit selective in vitro activities, making them therapeutic agents for the treatment or prophylaxis of some types of cancers, particularly leukemia, colon cancer, breast cancer, skin cancer or prostate cancer.
描述了具有额外
环戊烯环连接
碳1和
碳2,或连接类似物A环的
碳3和
碳2的19-去
维生素D类似物,以及其药用用途。这些化合物在体外表现出选择性活性,使它们成为治疗或预防某些类型癌症的治疗剂,特别是白血病、结肠癌、乳腺癌、皮肤癌或前列腺癌。