Get quick answers to your questions about the article from our AI researcher chatbot
{'id': 'https://openalex.org/W2165276211', 'doi': 'https://doi.org/10.1016/j.tet.2011.11.058', 'title': 'Potential anti-inflammatory diterpenes from Premna obtusifolia', 'display_name': 'Potential anti-inflammatory diterpenes from Premna obtusifolia', 'publication_year': 2012, 'publication_date': '2012-01-01', 'ids': {'openalex': 'https://openalex.org/W2165276211', 'doi': 'https://doi.org/10.1016/j.tet.2011.11.058', 'mag': '2165276211'}, 'language': 'en', 'primary_location': {'is_oa': False, 'landing_page_url': 'https://doi.org/10.1016/j.tet.2011.11.058', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S205754296', 'display_name': 'Tetrahedron', 'issn_l': '0040-4020', 'issn': ['0040-4020', '1464-5416'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310320990', 'host_organization_name': 'Elsevier BV', 'host_organization_lineage': ['https://openalex.org/P4310320990'], 'host_organization_lineage_names': ['Elsevier BV'], 'type': 'journal'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}, 'type': 'article', 'type_crossref': 'journal-article', 'indexed_in': ['crossref'], 'open_access': {'is_oa': False, 'oa_status': 'closed', 'oa_url': None, 'any_repository_has_fulltext': False}, 'authorships': [{'author_position': 'first', 'author': {'id': 'https://openalex.org/A5040588268', 'display_name': 'Abdul-Wahab Salae', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I131868736', 'display_name': 'Prince of Songkla University', 'ror': 'https://ror.org/0575ycz84', 'country_code': 'TH', 'type': 'education', 'lineage': ['https://openalex.org/I131868736']}], 'countries': ['TH'], 'is_corresponding': False, 'raw_author_name': 'Abdul-Wahab Salae', 'raw_affiliation_strings': ['Department of Chemistry and Center for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat-Yai, Songkhla 90112, Thailand'], 'affiliations': [{'raw_affiliation_string': 'Department of Chemistry and Center for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat-Yai, Songkhla 90112, Thailand', 'institution_ids': ['https://openalex.org/I131868736']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5028313888', 'display_name': 'A. Rodjun', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I131868736', 'display_name': 'Prince of Songkla University', 'ror': 'https://ror.org/0575ycz84', 'country_code': 'TH', 'type': 'education', 'lineage': ['https://openalex.org/I131868736']}], 'countries': ['TH'], 'is_corresponding': False, 'raw_author_name': 'Apinya Rodjun', 'raw_affiliation_strings': ['Department of Chemistry and Center for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat-Yai, Songkhla 90112, Thailand'], 'affiliations': [{'raw_affiliation_string': 'Department of Chemistry and Center for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat-Yai, Songkhla 90112, Thailand', 'institution_ids': ['https://openalex.org/I131868736']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5030341947', 'display_name': 'Chatchanok Karalai', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I131868736', 'display_name': 'Prince of Songkla University', 'ror': 'https://ror.org/0575ycz84', 'country_code': 'TH', 'type': 'education', 'lineage': ['https://openalex.org/I131868736']}], 'countries': ['TH'], 'is_corresponding': True, 'raw_author_name': 'Chatchanok Karalai', 'raw_affiliation_strings': ['Crystal Materials Research Unit, Department of Chemistry, Faculty of Science, Prince of Songkla University, Hat-Yai, Songkhla 90112, Thailand', 'Department of Chemistry and Center for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat-Yai, Songkhla 90112, Thailand'], 'affiliations': [{'raw_affiliation_string': 'Department of Chemistry and Center for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat-Yai, Songkhla 90112, Thailand', 'institution_ids': ['https://openalex.org/I131868736']}, {'raw_affiliation_string': 'Crystal Materials Research Unit, Department of Chemistry, Faculty of Science, Prince of Songkla University, Hat-Yai, Songkhla 90112, Thailand', 'institution_ids': ['https://openalex.org/I131868736']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5018907056', 'display_name': 'Chanita Ponglimanont', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I131868736', 'display_name': 'Prince of Songkla University', 'ror': 'https://ror.org/0575ycz84', 'country_code': 'TH', 'type': 'education', 'lineage': ['https://openalex.org/I131868736']}], 'countries': ['TH'], 'is_corresponding': False, 'raw_author_name': 'Chanita Ponglimanont', 'raw_affiliation_strings': ['Department of Chemistry and Center for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat-Yai, Songkhla 90112, Thailand'], 'affiliations': [{'raw_affiliation_string': 'Department of Chemistry and Center for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat-Yai, Songkhla 90112, Thailand', 'institution_ids': ['https://openalex.org/I131868736']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5063634724', 'display_name': 'Suchada Chantrapromma', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I131868736', 'display_name': 'Prince of Songkla University', 'ror': 'https://ror.org/0575ycz84', 'country_code': 'TH', 'type': 'education', 'lineage': ['https://openalex.org/I131868736']}], 'countries': ['TH'], 'is_corresponding': False, 'raw_author_name': 'Suchada Chantrapromma', 'raw_affiliation_strings': ['Crystal Materials Research Unit, Department of Chemistry, Faculty of Science, Prince of Songkla University, Hat-Yai, Songkhla 90112, Thailand', 'Department of Chemistry and Center for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat-Yai, Songkhla 90112, Thailand'], 'affiliations': [{'raw_affiliation_string': 'Department of Chemistry and Center for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat-Yai, Songkhla 90112, Thailand', 'institution_ids': ['https://openalex.org/I131868736']}, {'raw_affiliation_string': 'Crystal Materials Research Unit, Department of Chemistry, Faculty of Science, Prince of Songkla University, Hat-Yai, Songkhla 90112, Thailand', 'institution_ids': ['https://openalex.org/I131868736']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5026841076', 'display_name': 'Akkharawit Kanjana‐Opas', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I131868736', 'display_name': 'Prince of Songkla University', 'ror': 'https://ror.org/0575ycz84', 'country_code': 'TH', 'type': 'education', 'lineage': ['https://openalex.org/I131868736']}], 'countries': ['TH'], 'is_corresponding': False, 'raw_author_name': 'Akkharawit Kanjana-Opas', 'raw_affiliation_strings': ['Department of Industrial Biotechnology, Faculty of Agro-Industry, Prince of Songkla University, Hat-Yai, Songkhla 90112, Thailand'], 'affiliations': [{'raw_affiliation_string': 'Department of Industrial Biotechnology, Faculty of Agro-Industry, Prince of Songkla University, Hat-Yai, Songkhla 90112, Thailand', 'institution_ids': ['https://openalex.org/I131868736']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5052019244', 'display_name': 'Supinya Tewtrakul', 'orcid': 'https://orcid.org/0000-0002-2562-6232'}, 'institutions': [{'id': 'https://openalex.org/I131868736', 'display_name': 'Prince of Songkla University', 'ror': 'https://ror.org/0575ycz84', 'country_code': 'TH', 'type': 'education', 'lineage': ['https://openalex.org/I131868736']}], 'countries': ['TH'], 'is_corresponding': False, 'raw_author_name': 'Supinya Tewtrakul', 'raw_affiliation_strings': ['Department of Pharmacognosy and Pharmaceutical Botany, Faculty of Pharmaceutical Sciences, Prince of Songkla University, Hat-Yai, Songkhla 90112, Thailand'], 'affiliations': [{'raw_affiliation_string': 'Department of Pharmacognosy and Pharmaceutical Botany, Faculty of Pharmaceutical Sciences, Prince of Songkla University, Hat-Yai, Songkhla 90112, Thailand', 'institution_ids': ['https://openalex.org/I131868736']}]}, {'author_position': 'last', 'author': {'id': 'https://openalex.org/A5009855140', 'display_name': 'Hoong‐Kun Fun', 'orcid': 'https://orcid.org/0000-0002-4076-7586'}, 'institutions': [{'id': 'https://openalex.org/I139322472', 'display_name': 'Universiti Sains Malaysia', 'ror': 'https://ror.org/02rgb2k63', 'country_code': 'MY', 'type': 'education', 'lineage': ['https://openalex.org/I139322472']}], 'countries': ['MY'], 'is_corresponding': False, 'raw_author_name': 'Hoong-Kun Fun', 'raw_affiliation_strings': ['X-ray Crystallography Unit, School of Physics, Universiti Sains Malaysia, 11800 USM, Penang, Malaysia'], 'affiliations': [{'raw_affiliation_string': 'X-ray Crystallography Unit, School of Physics, Universiti Sains Malaysia, 11800 USM, Penang, Malaysia', 'institution_ids': ['https://openalex.org/I139322472']}]}], 'countries_distinct_count': 2, 'institutions_distinct_count': 2, 'corresponding_author_ids': ['https://openalex.org/A5030341947'], 'corresponding_institution_ids': ['https://openalex.org/I131868736'], 'apc_list': {'value': 3370, 'currency': 'USD', 'value_usd': 3370, 'provenance': 'doaj'}, 'apc_paid': None, 'fwci': 1.624, 'has_fulltext': True, 'fulltext_origin': 'ngrams', 'cited_by_count': 36, 'citation_normalized_percentile': {'value': 0.89954, 'is_in_top_1_percent': False, 'is_in_top_10_percent': False}, 'cited_by_percentile_year': {'min': 93, 'max': 94}, 'biblio': {'volume': '68', 'issue': '3', 'first_page': '819', 'last_page': '829'}, 'is_retracted': False, 'is_paratext': False, 'primary_topic': {'id': 'https://openalex.org/T11385', 'display_name': 'Biological Activities of Triterpenoids and Saponins', 'score': 0.9999, 'subfield': {'id': 'https://openalex.org/subfields/1312', 'display_name': 'Molecular Biology'}, 'field': {'id': 'https://openalex.org/fields/13', 'display_name': 'Biochemistry, Genetics and Molecular Biology'}, 'domain': {'id': 'https://openalex.org/domains/1', 'display_name': 'Life Sciences'}}, 'topics': [{'id': 'https://openalex.org/T11385', 'display_name': 'Biological Activities of Triterpenoids and Saponins', 'score': 0.9999, 'subfield': {'id': 'https://openalex.org/subfields/1312', 'display_name': 'Molecular Biology'}, 'field': {'id': 'https://openalex.org/fields/13', 'display_name': 'Biochemistry, Genetics and Molecular Biology'}, 'domain': {'id': 'https://openalex.org/domains/1', 'display_name': 'Life Sciences'}}, {'id': 'https://openalex.org/T11613', 'display_name': 'Medicinal Plants: Chemical Constituents and Biological Activities', 'score': 0.9999, 'subfield': {'id': 'https://openalex.org/subfields/1110', 'display_name': 'Plant Science'}, 'field': {'id': 'https://openalex.org/fields/11', 'display_name': 'Agricultural and Biological Sciences'}, 'domain': {'id': 'https://openalex.org/domains/1', 'display_name': 'Life Sciences'}}, {'id': 'https://openalex.org/T13221', 'display_name': 'Biological Activity of Diterpenoids and Biflavonoids', 'score': 0.9998, 'subfield': {'id': 'https://openalex.org/subfields/1312', 'display_name': 'Molecular Biology'}, 'field': {'id': 'https://openalex.org/fields/13', 'display_name': 'Biochemistry, Genetics and Molecular Biology'}, 'domain': {'id': 'https://openalex.org/domains/1', 'display_name': 'Life Sciences'}}], 'keywords': [{'id': 'https://openalex.org/keywords/saponins', 'display_name': 'Saponins', 'score': 0.482913}, {'id': 'https://openalex.org/keywords/terpene', 'display_name': 'Terpene', 'score': 0.4621881}], 'concepts': [{'id': 'https://openalex.org/C185592680', 'wikidata': 'https://www.wikidata.org/wiki/Q2329', 'display_name': 'Chemistry', 'level': 0, 'score': 0.91625047}, {'id': 'https://openalex.org/C71240020', 'wikidata': 'https://www.wikidata.org/wiki/Q186011', 'display_name': 'Stereochemistry', 'level': 1, 'score': 0.5447917}, {'id': 'https://openalex.org/C2776710815', 'wikidata': 'https://www.wikidata.org/wiki/Q59447', 'display_name': 'Diterpene', 'level': 2, 'score': 0.5412528}, {'id': 'https://openalex.org/C2780104969', 'wikidata': 'https://www.wikidata.org/wiki/Q4774530', 'display_name': 'Antibacterial activity', 'level': 3, 'score': 0.5262619}, {'id': 'https://openalex.org/C44937612', 'wikidata': 'https://www.wikidata.org/wiki/Q212364', 'display_name': 'Terpene', 'level': 2, 'score': 0.4621881}, {'id': 'https://openalex.org/C556039675', 'wikidata': 'https://www.wikidata.org/wiki/Q771035', 'display_name': 'Traditional medicine', 'level': 1, 'score': 0.4142112}, {'id': 'https://openalex.org/C523546767', 'wikidata': 'https://www.wikidata.org/wiki/Q10876', 'display_name': 'Bacteria', 'level': 2, 'score': 0.040043294}, {'id': 'https://openalex.org/C86803240', 'wikidata': 'https://www.wikidata.org/wiki/Q420', 'display_name': 'Biology', 'level': 0, 'score': 0.03049171}, {'id': 'https://openalex.org/C71924100', 'wikidata': 'https://www.wikidata.org/wiki/Q11190', 'display_name': 'Medicine', 'level': 0, 'score': 0.0}, {'id': 'https://openalex.org/C54355233', 'wikidata': 'https://www.wikidata.org/wiki/Q7162', 'display_name': 'Genetics', 'level': 1, 'score': 0.0}], 'mesh': [], 'locations_count': 1, 'locations': [{'is_oa': False, 'landing_page_url': 'https://doi.org/10.1016/j.tet.2011.11.058', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S205754296', 'display_name': 'Tetrahedron', 'issn_l': '0040-4020', 'issn': ['0040-4020', '1464-5416'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310320990', 'host_organization_name': 'Elsevier BV', 'host_organization_lineage': ['https://openalex.org/P4310320990'], 'host_organization_lineage_names': ['Elsevier BV'], 'type': 'journal'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}], 'best_oa_location': None, 'sustainable_development_goals': [{'display_name': 'Life on land', 'score': 0.44, 'id': 'https://metadata.un.org/sdg/15'}], 'grants': [], 'datasets': ['https://openalex.org/W4397684229', 'https://openalex.org/W4398005882'], 'versions': [], 'referenced_works_count': 42, 'referenced_works': ['https://openalex.org/W113069465', 'https://openalex.org/W1964966366', 'https://openalex.org/W1968359814', 'https://openalex.org/W1972877241', 'https://openalex.org/W1984887760', 'https://openalex.org/W1986340226', 'https://openalex.org/W1992515762', 'https://openalex.org/W1997858667', 'https://openalex.org/W2000193844', 'https://openalex.org/W2003602207', 'https://openalex.org/W2004852928', 'https://openalex.org/W2005670290', 'https://openalex.org/W2008041886', 'https://openalex.org/W2011251911', 'https://openalex.org/W2012455459', 'https://openalex.org/W2013921299', 'https://openalex.org/W2021506263', 'https://openalex.org/W2023937032', 'https://openalex.org/W2025283814', 'https://openalex.org/W2035487454', 'https://openalex.org/W2038307608', 'https://openalex.org/W2043102111', 'https://openalex.org/W2044204144', 'https://openalex.org/W2055278262', 'https://openalex.org/W2057516142', 'https://openalex.org/W2058934160', 'https://openalex.org/W2072707987', 'https://openalex.org/W2074707909', 'https://openalex.org/W2079996883', 'https://openalex.org/W2081543485', 'https://openalex.org/W2084244248', 'https://openalex.org/W2087779699', 'https://openalex.org/W2088458270', 'https://openalex.org/W2089524123', 'https://openalex.org/W2094384842', 'https://openalex.org/W2098749387', 'https://openalex.org/W2131350133', 'https://openalex.org/W2157850993', 'https://openalex.org/W2160108558', 'https://openalex.org/W2461224939', 'https://openalex.org/W2463222947', 'https://openalex.org/W3004879930'], 'related_works': ['https://openalex.org/W4309047958', 'https://openalex.org/W3110885250', 'https://openalex.org/W3082072074', 'https://openalex.org/W2421969030', 'https://openalex.org/W2071451411', 'https://openalex.org/W2040430308', 'https://openalex.org/W2037535229', 'https://openalex.org/W2014074068', 'https://openalex.org/W1995954595', 'https://openalex.org/W1984318426'], 'abstract_inverted_index': {'Eleven': [0], 'new': [1], 'diterpenoids:': [2], 'pimaranes': [3], '(1,2),': [4], 'rosanes': [5], '(3)': [6], 'abietanes': [7], '(4–7),': [8], 'icetexanes': [9, 13], '(8),': [10], 'and': [11, 21, 32, 50, 56, 63], 'rearranged': [12], '(9–11),': [14], 'together': [15], 'with': [16], 'fifteen': [17], 'known': [18, 23], 'diterpenes': [19], '(12–26)': [20], 'two': [22], 'sesquiterpenes': [24], '(27,28)': [25], 'have': [26], 'been': [27], 'isolated': [28], 'from': [29], 'the': [30, 45, 67], 'roots': [31], 'twigs': [33], 'of': [34, 39, 47, 54, 66], 'Premna': [35], 'obtusifolia.': [36], 'The': [37, 61], 'structures': [38], 'these': [40], 'compounds': [41], 'were': [42, 58, 69], 'elucidated': [43], 'on': [44], 'basis': [46], 'spectroscopic': [48], 'analysis': [49], 'X-ray': [51], 'crystallographic': [52], 'data': [53], '8': [55], '9': [57], 'also': [59], 'determined.': [60], 'antibacterial': [62], 'anti-inflammatory': [64], 'activities': [65], 'isolates': [68], 'evaluated.': [70]}, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W2165276211', 'counts_by_year': [{'year': 2024, 'cited_by_count': 3}, {'year': 2023, 'cited_by_count': 2}, {'year': 2022, 'cited_by_count': 3}, {'year': 2021, 'cited_by_count': 1}, {'year': 2020, 'cited_by_count': 1}, {'year': 2019, 'cited_by_count': 1}, {'year': 2018, 'cited_by_count': 4}, {'year': 2017, 'cited_by_count': 5}, {'year': 2016, 'cited_by_count': 4}, {'year': 2015, 'cited_by_count': 5}, {'year': 2014, 'cited_by_count': 3}, {'year': 2013, 'cited_by_count': 4}], 'updated_date': '2024-09-11T16:19:01.923940', 'created_date': '2016-06-24'}