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'satisfactory': [38], 'chemical': [39], 'yield': [40], 'and': [41], 'enantioselectivity': [42], '(up': [43], '96%,': [45], 'up': [46], '98%': [48], 'ee).': [49], 'In': [50], 'addition,': [51], 'the': [52], 'obtained': [53], 'highly': [54], 'pure': [56], 'isoquinuclidine': [57], 'converted': [60], 'piperidine': [65], 'having': [66], 'four': [67], 'successive': [68], 'carbon': [69], 'centers.': [70]}, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W2080443101', 'counts_by_year': [{'year': 2024, 'cited_by_count': 1}, {'year': 2023, 'cited_by_count': 3}, {'year': 2022, 'cited_by_count': 2}, {'year': 2021, 'cited_by_count': 3}, {'year': 2020, 'cited_by_count': 3}, {'year': 2019, 'cited_by_count': 2}, {'year': 2018, 'cited_by_count': 4}, {'year': 2017, 'cited_by_count': 6}, {'year': 2016, 'cited_by_count': 9}, {'year': 2015, 'cited_by_count': 5}], 'updated_date': '2024-08-28T11:04:23.099502', 'created_date': '2016-06-24'}