Novel 19-nor steroids and 19-nor-D-homo-steroids of the formula ##STR1## wherein R.sub.1 is an organic radical of 1 to 18 carbon atoms containing at least one atom selected from the group consisting of nitrogen, phosphorous and silicon with the atom immediately adjacent to the 11-carbon atom being carbon, R.sub.2 is a hydrocarbon of 1 to 8 carbon atoms, X is selected from the group consisting of a pentagonal ring and a hexagonal ring optionally substituted and optionally containing a double bond, B and C together form a double bond or an epoxy group, the C.dbd.A group at position 3 is selected from the group consisting of C.dbd.O, ketal, ##STR2## --C.dbd.NOH, --C.dbd.NOAlK.sub.3 and .dbd.CH.sub.2, AlK.sub.1, AlK.sub.2 and AlK.sub.3 are selected from the group consisting of alkyl of 1 to 8 carbon atoms and aralkyl of 7 to 15 carbon atoms and their non-toxic, pharmaceutically acceptable acid addition salts having anti-glucocorticoid activity and a process for their preparation.
19-去甲基类
固醇和19-去甲基-D-同族类
固醇的
化学式为##STR1##其中R.sub.1是一个有机基团,含有1-18个碳原子,其中至少有一个原子来自于氮、
磷或
硅,且紧邻11号碳原子的原子为碳;R.sub.2为1-8个碳原子的烃基;X选自五角形环和六角形环,可选地含有双键和取代基;B和C共同形成双键或环氧基团;在3号位置的C.dbd.A基团选自C.dbd.O、ketal、##STR2##--C.dbd.NOH、--C.dbd.NOAlK.sub.3和.dbd.CH.sub.2,AlK.sub.1、AlK.sub.2和AlK.sub.3选自1-8个碳原子的烷基和7-15个碳原子的芳基烷基,以及它们的非毒性、药学上可接受的酸盐,具有抗糖皮质激素活性,以及制备它们的方法。