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Characteristic API Advanced Intermediate Impurity

2-Azabicyclo[3.1.0]hexane-2,3-dicarboxylic acid, 2-(1,1-dimethylethyl) 3-ethyl ester, (1R,3S,5R)-

CAS No.：214193-10-9
Product No.：66-9B
Configuration：绝对构型
From：工艺杂质
2-Azabicyclo[3.1.0]hexane-2,3-dicarboxylic acid, 2-(1,1-dimethylethyl) 3-ethyl ester, (1S,3S,5S)-

CAS No.：214193-11-0
Product No.：66-9A
Configuration：绝对构型
From：工艺杂质
(1S,3S,5S)-tert-butyl 3-(methylcarbamoyl)-2-azabicyclo[3.1.0]hexane-2-carboxylate

CAS No.：NA
Product No.：66-7C
Configuration：绝对构型
From：工艺杂质
1H-Pyrrole-1-carboxylic acid, 2-(aminocarbonyl)-2,3-dihydro-, 1,1-dimethylethyl ester, (2S)-

CAS No.：709031-38-9
Product No.：66-6
Configuration：绝对构型
From：工艺杂质
"1H-Pyrrole-1,2-dicarboxylic acid, 2,3-dihydro-, 1-(1,1-dimethylethyl) ester, (2S)-, compd. with triethylamine(1:1)"

CAS No.：NA
Product No.：66-5A
Configuration：绝对构型
From：工艺杂质
1H-Pyrrole-1,2-dicarboxylic acid, 2,3-dihydro-, 1-(1,1-dimethylethyl) 2-ethyl ester, (2S)-

CAS No.：178172-26-4
Product No.：66-4
Configuration：绝对构型
From：工艺杂质
1,2-Pyrrolidinedicarboxylic acid, 5-hydroxy-, 1-(1,1-dimethylethyl) 2-ethyl ester, (2S)-

CAS No.：194594-23-5
Product No.：66-3
Configuration：绝对构型
From：工艺杂质
1,2-Pyrrolidinedicarboxylic acid, 5-oxo-, 1-(1,1-dimethylethyl) 2-ethyl ester, (2S)-

CAS No.：144978-12-1
Product No.：66-2
Configuration：绝对构型
From：工艺杂质
L-Proline, 5-oxo-, ethyl ester

CAS No.：7149-65-7
Product No.：66-1
Configuration：绝对构型
From：工艺杂质
2-Azabicyclo[3.1.0]hexane-2-carboxylic acid, 3-(aminocarbonyl)-, 1,1-dimethylethyl ester, (1S,3R,5S)-

CAS No.：1564266-79-0
Product No.：66-11D
Configuration：绝对构型
From：工艺杂质
2-Azabicyclo[3.1.0]hexane-2-carboxylic acid, 3-(aminocarbonyl)-, 1,1-dimethylethyl ester, (1R,3S,5R)-

CAS No.：1445592-86-8
Product No.：66-11B
Configuration：绝对构型
From：工艺杂质
2-Azabicyclo[3.1.0]hexane-2-carboxylic acid, 3-(aminocarbonyl)-, 1,1-dimethylethyl ester, (1R,3R,5R)-

CAS No.：1564266-54-1
Product No.：66-7A
Configuration：绝对构型
From：工艺杂质

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Characteristic API Advanced Intermediate Impurity

2-Azabicyclo[3.1.0]hexane-2,3-dicarboxylic acid, 2-(1,1-dimethylethyl) 3-ethyl ester, (1R,3S,5R)-

2-Azabicyclo[3.1.0]hexane-2,3-dicarboxylic acid, 2-(1,1-dimethylethyl) 3-ethyl ester, (1S,3S,5S)-

(1S,3S,5S)-tert-butyl 3-(methylcarbamoyl)-2-azabicyclo[3.1.0]hexane-2-carboxylate

1H-Pyrrole-1-carboxylic acid, 2-(aminocarbonyl)-2,3-dihydro-, 1,1-dimethylethyl ester, (2S)-

"1H-Pyrrole-1,2-dicarboxylic acid, 2,3-dihydro-, 1-(1,1-dimethylethyl) ester, (2S)-, compd. with triethylamine(1:1)"

1H-Pyrrole-1,2-dicarboxylic acid, 2,3-dihydro-, 1-(1,1-dimethylethyl) 2-ethyl ester, (2S)-

1,2-Pyrrolidinedicarboxylic acid, 5-hydroxy-, 1-(1,1-dimethylethyl) 2-ethyl ester, (2S)-

1,2-Pyrrolidinedicarboxylic acid, 5-oxo-, 1-(1,1-dimethylethyl) 2-ethyl ester, (2S)-

L-Proline, 5-oxo-, ethyl ester

2-Azabicyclo[3.1.0]hexane-2-carboxylic acid, 3-(aminocarbonyl)-, 1,1-dimethylethyl ester, (1S,3R,5S)-

2-Azabicyclo[3.1.0]hexane-2-carboxylic acid, 3-(aminocarbonyl)-, 1,1-dimethylethyl ester, (1R,3S,5R)-

2-Azabicyclo[3.1.0]hexane-2-carboxylic acid, 3-(aminocarbonyl)-, 1,1-dimethylethyl ester, (1R,3R,5R)-

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Characteristic APIAdvanced IntermediateImpurity

2-​Azabicyclo[3.1.0]​hexane-​2,​3-​dicarboxylic acid, 2-​(1,​1-​dimethylethyl) 3-​ethyl ester, (1R,​3S,​5R)​-

2-​Azabicyclo[3.1.0]​hexane-​2,​3-​dicarboxylic acid, 2-​(1,​1-​dimethylethyl) 3-​ethyl ester, (1S,​3S,​5S)​-

(1S,3S,5S)-tert-butyl 3-(methylcarbamoyl)-2-azabicyclo[3.1.0]hexane-2-carboxylate

1H-​Pyrrole-​1-​carboxylic acid, 2-​(aminocarbonyl)​-​2,​3-​dihydro-​, 1,​1-​dimethylethyl ester, (2S)​-

"1H-Pyrrole-1,2-dicarboxylic acid, 2,3-dihydro-, 1-(1,1-dimethylethyl) ester, (2S)-, compd. with triethylamine(1:1)"

1H-​Pyrrole-​1,​2-​dicarboxylic acid, 2,​3-​dihydro-​, 1-​(1,​1-​dimethylethyl) 2-​ethyl ester, (2S)​-

1,​2-​Pyrrolidinedicarboxy​lic acid, 5-​hydroxy-​, 1-​(1,​1-​dimethylethyl) 2-​ethyl ester, (2S)​-

1,2-Pyrrolidinedicarboxylic acid, 5-oxo-, 1-(1,1-dimethylethyl) 2-ethyl ester, (2S)-

L-Proline, 5-oxo-, ethyl ester

2-​Azabicyclo[3.1.0]​hexane-​2-​carboxylic acid, 3-​(aminocarbonyl)​-​, 1,​1-​dimethylethyl ester, (1S,​3R,​5S)​-

2-​Azabicyclo[3.1.0]​hexane-​2-​carboxylic acid, 3-​(aminocarbonyl)​-​, 1,​1-​dimethylethyl ester, (1R,​3S,​5R)​-

2-​Azabicyclo[3.1.0]​hexane-​2-​carboxylic acid, 3-​(aminocarbonyl)​-​, 1,​1-​dimethylethyl ester, (1R,​3R,​5R)​-

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Characteristic API Advanced Intermediate Impurity

2-Azabicyclo[3.1.0]hexane-2,3-dicarboxylic acid, 2-(1,1-dimethylethyl) 3-ethyl ester, (1R,3S,5R)-

2-Azabicyclo[3.1.0]hexane-2,3-dicarboxylic acid, 2-(1,1-dimethylethyl) 3-ethyl ester, (1S,3S,5S)-

1H-Pyrrole-1-carboxylic acid, 2-(aminocarbonyl)-2,3-dihydro-, 1,1-dimethylethyl ester, (2S)-

1H-Pyrrole-1,2-dicarboxylic acid, 2,3-dihydro-, 1-(1,1-dimethylethyl) 2-ethyl ester, (2S)-

1,2-Pyrrolidinedicarboxylic acid, 5-hydroxy-, 1-(1,1-dimethylethyl) 2-ethyl ester, (2S)-

2-Azabicyclo[3.1.0]hexane-2-carboxylic acid, 3-(aminocarbonyl)-, 1,1-dimethylethyl ester, (1S,3R,5S)-

2-Azabicyclo[3.1.0]hexane-2-carboxylic acid, 3-(aminocarbonyl)-, 1,1-dimethylethyl ester, (1R,3S,5R)-

2-Azabicyclo[3.1.0]hexane-2-carboxylic acid, 3-(aminocarbonyl)-, 1,1-dimethylethyl ester, (1R,3R,5R)-