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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Administrative data

Endpoint:
in vitro gene mutation study in bacteria
Type of information:
(Q)SAR
Adequacy of study:
supporting study
Study period:
30.09.2021
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
test procedure in accordance with generally accepted scientific standards and described in sufficient detail

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2021
Report date:
2021

Materials and methods

Principles of method if other than guideline:
1. SOFTWARE

DEREK Nexus / SARAH Nexus

2. MODEL (incl. version number)

ICH M7 Prediction; Derek KB 2020 1.0; Sarah Model - 2020.1

3. SMILES OR OTHER IDENTIFIERS USED AS INPUT FOR THE MODEL

CC(C)(C)OC(=O)N1C[C@@H](C[C@H]1C(=O)O)O

4. SCIENTIFIC VALIDITY OF THE (Q)SAR MODEL
- Defined endpoint:
Ames Mutagenicity
GLP compliance:
no
Type of assay:
bacterial reverse mutation assay

Test material

Constituent 1
Chemical structure
Reference substance name:
(2S,4R)-1-[(tert-butoxy)carbonyl]-4-hydroxypyrrolidine-2-carboxylic acid
EC Number:
604-011-7
Cas Number:
13726-69-7
Molecular formula:
C10H17NO5
IUPAC Name:
(2S,4R)-1-[(tert-butoxy)carbonyl]-4-hydroxypyrrolidine-2-carboxylic acid

Method

Metabolic activation:
with and without

Results and discussion

Test resultsopen allclose all
Key result
Metabolic activation:
with and without
Genotoxicity:
negative
Remarks:
DEREK Nexus
Key result
Metabolic activation:
with and without
Genotoxicity:
negative
Remarks:
SARAH Nexus
Additional information on results:
DEREK Nexus: The query structure does not match any structural alerts or examples for (bacterial in vitro) mutagenicity in Derek. Additionally, the query structure does not contain any unclassified or misclassified features and is consequently predicted to be inactive in the bacterial in vitro (Ames) mutagenicity test.
SARAH Nexus: The compound is predicted to be negative with 21% confidence for the 'Mutagenicity in vitro' endpoint in the model: 'Sarah Model - 2020.1'. Supporting hypotheses containing similar examples from the training set have been found. For the hypotheses indicated, the local activity signal generated from the most similar compounds to the query compound contradicts the overall activity signal for the hypothesis.
Remarks on result:
no mutagenic potential (based on QSAR/QSPR prediction)

Applicant's summary and conclusion

Conclusions:
The mutagenic potential of Boc-trans-4-hydroxy-L-proline was investigated in silico using the software tools DEREK Nexus and SARAH Nexus. Both tools gave negative prediction results. Therefore, it is concluded that Boc-trans-4-hydroxy-L-proline is not mutagenic in the Ames test.