| abstract |
Method for St - C = O St = a 10, 13-dimethylcyclopentanoperhydrophenanthrene nucleus. Anti-inflammatories and gestagens. St - = CH - NA (I) -NA = a sec. amino gp., and A = 2 alkyl, hydroxyalkyl, or aralkyl gps., or a heterocyclic ring residue. Cat.-eosine Y, methylene blue, chlorophyll, riboflavin, etc. (q.v. Schenck et al., angew. Chem., 69, 579). (II) prepd. as in J.A.C.S., 85, 207. |