p. 2730 - 2732
(2012)p. 61 - 65
(2015)p. 589 - 590
(2007/10/02)(1,4-dioxa-spiro[4.4]non-6-yl)-methanol
tert-butylchlorodiphenylsilane
ethyl 1,4-dioxaspiro[4,4]nonane-6-carboxylate
2-ethoxycarbonyl-1-cyclopentanone
methyl 2-oxocyclopentane-1-carboxylate