The conversion of gibberellic acid into steroid analogues
Abstract
The expansion of ring B of the gibberellins by formolysis of the toluene-p-sulphonate of the 7-hydroxymethyl analogue of gibberic acid affords the steroid analogue, 4-methyl-15(14→8α)-abeo-16-noroestra-1,3,5(10)-trien-17-one.