An enhanced spiroketalization maneuver permitting equilibration at both the C(8) and C(11) centers of spiroketals 17a,b leads to a more concise and efficient synthesis of phyllanthocin (i.e., 21 steps, 5.6% overall yield).

中文翻译：

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菊蓝苷-Phyllanthostatin合成研究。6.全合成phyllanthocin的增强spiroketalization策略

增强的螺环缩合策略允许在螺环素17a，b的C（8）和C（11）中心均达到平衡，从而导致精索霉素的合成更加简洁有效（即21步，总收率5.6％）。