[EN300-152389-0.05g] tert-butyl 4-oxo-1-oxa-9-azaspiro[5.5]undecane-9-carboxylate 545,182원
[EN300-152389-0.1g] tert-butyl 4-oxo-1-oxa-9-azaspiro[5.5]undecane-9-carboxylate 784,727원
[EN300-152389-0.25g] tert-butyl 4-oxo-1-oxa-9-azaspiro[5.5]undecane-9-carboxylate 1,097,545원
[EN300-152389-0.5g] tert-butyl 4-oxo-1-oxa-9-azaspiro[5.5]undecane-9-carboxylate 1,691,545원
[EN300-152389-1g] tert-butyl 4-oxo-1-oxa-9-azaspiro[5.5]undecane-9-carboxylate 2,152,909원
[EN300-152389-2.5g] tert-butyl 4-oxo-1-oxa-9-azaspiro[5.5]undecane-9-carboxylate 4,160,636원
[EN300-152389-5g] tert-butyl 4-oxo-1-oxa-9-azaspiro[5.5]undecane-9-carboxylate 6,128,818원
[EN300-152389-10g] tert-butyl 4-oxo-1-oxa-9-azaspiro[5.5]undecane-9-carboxylate 9,059,182원