| 摘要 |
This invention relates to compounds of the formulae <IMAGE> +TR <IMAGE> wherein n is an integer from 2 to 5; M is H, acyl, lower alkyl, or lower alkoxy alkyl; Q is H or lower alkyl; R is alkyl, alkenyl or analkyl; A is H; Y is OH, acyloxy or alkoxy, and when taken together, Y and A is oxo (O=), and to novel intermediates therefore.
|
