| —— | (5S,6S)-6-[tert-butyl(dimethyl)silyl]oxy-1,10-dioxa-3-azaspiro[4.5]dec-7-en-2-one | 403501-08-6 | C13H23NO4Si | 285.415 | 
                                                                                                                                            
                                        | —— | (5S,8R,9R,10S)-10-(tert-Butyl-dimethyl-silanyloxy)-8,9-dihydroxy-1,6-dioxa-3-aza-spiro[4.5]decan-2-one | 403501-00-8 | C13H25NO6Si | 319.43 | 
                                                                                                                                            
                                        | —— | (3'aR,5S,7'S,7'aR)-7'-[tert-butyl(dimethyl)silyl]oxy-2',2'-dimethylspiro[1,3-oxazolidine-5,6'-3a,4,7,7a-tetrahydro-[1,3]dioxolo[4,5-c]pyran]-2-one | 319491-85-5 | C16H29NO6Si | 359.495 | 
                                                                                                                                            
                                        | —— | (3'aR,5S,7'S,7'aR)-7'-[tert-butyl(dimethyl)silyl]oxy-2'-sulfanylidenespiro[1,3-oxazolidine-5,6'-3a,4,7,7a-tetrahydro-[1,3]dioxolo[4,5-c]pyran]-2-one | 403501-03-1 | C14H23NO6SSi | 361.491 |