| —— | 
                                        (S)-tert-butyl 8-(6-(hydroxyamino)-6-oxohexylcarbamoyl)-1,4-dithia-7-azaspiro[4.4]nonane-7-carboxylate | 
                                        1286720-64-6 | 
                                        C18H31N3O5S2 | 
                                        433.593 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        (S)-tert-butyl 2-((S)-8-(6-(hydroxyamino)-6-oxohexylcarbamoyl)-1,4-dithia-7-azaspiro[4.4]nonane-7-carbonyl)pyrrolidine-1-carboxylate | 
                                        1286720-79-3 | 
                                        C23H38N4O6S2 | 
                                        530.71 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        (S)-methyl 6-(7-(2-(tert-butoxycarbonylamino)acetyl)-1,4-dithia-7-azaspiro[4.4]nonane-8-carboxamido)hexanoate | 
                                        1286721-21-8 | 
                                        C21H35N3O6S2 | 
                                        489.657 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        (S)-6-(7-(2-(tert-butoxycarbonylamino)acetyl)-1,4-dithia-7-azaspiro[4.4]nonane-8-carboxamido)hexanoic acid | 
                                        1286721-22-9 | 
                                        C20H33N3O6S2 | 
                                        475.631 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        tert-butyl (S)-6-((S)-8-(6-(hydroxyamino)-6-oxohexylcarbamoyl)-1,4-dithia-7-azaspiro[4.4]nonan-7-yl)-6-oxohexane-1,5-diyldicarbamate | 
                                        1286720-84-0 | 
                                        C29H51N5O8S2 | 
                                        661.885 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        tert-butyl (S)-1-((S)-8-(6-(hydroxyamino)-6-oxohexylcarbamoyl)-1,4-dithia-7-azaspiro[4.4]nonan-7-yl)-4-methyl-1-oxopentan-2-ylcarbamate | 
                                        1286720-76-0 | 
                                        C24H42N4O6S2 | 
                                        546.753 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        tert-butyl (S)-1-((S)-8-(6-(hydroxyamino)-6-oxohexylcarbamoyl)-1,4-dithia-7-azaspiro[4.4]nonan-7-yl)-1-oxopropan-2-ylcarbamate | 
                                        1286720-74-8 | 
                                        C21H36N4O6S2 | 
                                        504.672 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        (S)-tert-butyl 2-(8-(6-(hydroxyamino)-6-oxohexylcarbamoyl)-1,4-dithia-7-azaspiro[4.4]nonan-7-yl)-2-oxoethylcarbamate | 
                                        1286720-67-9 | 
                                        C20H34N4O6S2 | 
                                        490.645 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        tert-butyl (2S,3S)-1-((S)-8-(6-(hydroxyamino)-6-oxohexylcarbamoyl)-1,4-dithia-7-azaspiro[4.4]nonan-7-yl)-3-methyl-1-oxopentan-2-ylcarbamate | 
                                        1346416-67-8 | 
                                        C24H42N4O6S2 | 
                                        546.753 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        (S)-tert-butyl 4-(8-(6-(hydroxyamino)-6-oxohexylcarbamoyl)-1,4-dithia-7-azaspiro[4.4]nonan-7-yl)-4-oxobutylcarbamate | 
                                        1286720-72-6 | 
                                        C22H38N4O6S2 | 
                                        518.699 | 
                                    
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
                                                        
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
                                        | —— | 
                                        tert-butyl (S)-1-((S)-8-(6-(hydroxyamino)-6-oxohexylcarbamoyl)-1,4-dithia-7-azaspiro[4.4]nonan-7-yl)-3-methyl-1-oxobutan-2-ylcarbamate | 
                                        1286720-75-9 | 
                                        C23H40N4O6S2 | 
                                        532.726 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        (S)-tert-butyl 3-(8-(6-(hydroxyamino)-6-oxohexylcarbamoyl)-1,4-dithia-7-azaspiro[4.4]nonan-7-yl)-3-oxopropylcarbamate | 
                                        1286720-69-1 | 
                                        C21H36N4O6S2 | 
                                        504.672 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        (S)-tert-butyl 4-(8-(6-(hydroxyamino)-6-oxohexylcarbamoyl)-1,4-dithia-7-azaspiro[4.4]nonane-7-carbonyl)piperidine-1-carboxylate | 
                                        1286720-80-6 | 
                                        C24H40N4O6S2 | 
                                        544.737 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        tert-butyl (S)-3-hydroxy-1-((S)-8-(6-(hydroxyamino)-6-oxohexylcarbamoyl)-1,4-dithia-7-azaspiro[4.4]nonan-7-yl)-1-oxopropan-2-ylcarbamate | 
                                        1286720-78-2 | 
                                        C21H36N4O7S2 | 
                                        520.671 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        tert-butyl (S)-1-((S)-8-(6-(hydroxyamino)-6-oxohexylcarbamoyl)-1,4-dithia-7-azaspiro[4.4]nonan-7-yl)-1-oxo-3-phenylpropan-2-ylcarbamate | 
                                        1286720-81-7 | 
                                        C27H40N4O6S2 | 
                                        580.77 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        tert-butyl (S)-1-((S)-8-(6-(hydroxyamino)-6-oxohexylcarbamoyl)-1,4-dithia-7-azaspiro[4.4]nonan-7-yl)-3-(4-hydroxyphenyl)-1-oxopropan-2-ylcarbamate | 
                                        1286720-82-8 | 
                                        C27H40N4O7S2 | 
                                        596.769 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        (S)-methyl 6-(1,4-dithia-7-azaspiro[4.4]nonane-8-carboxamido)hexanoate | 
                                        1286721-79-6 | 
                                        C14H24N2O3S2 | 
                                        332.488 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        tert-butyl (S)-1-((S)-8-(6-(hydroxyamino)-6-oxohexylcarbamoyl)-1,4-dithia-7-azaspiro[4.4]nonan-7-yl)-3-(1H-indol-3-yl)-1-oxopropan-2-ylcarbamate | 
                                        1286720-83-9 | 
                                        C29H41N5O6S2 | 
                                        619.806 |