{"id":"W3188606588","doi":"10.1002/mrc.5203","title":"Stereochemical assignment of three new benzylisoquinoline alkaloids from <i>Phaeanthus vietnamensis</i> by NMR study combined with CD spectroscopy","year":2021,"lang":"en","type":"letter","venue":"Magnetic Resonance in Chemistry","topic":"Traditional and Medicinal Uses of Annonaceae","field":"Biochemistry, Genetics and Molecular Biology","cited_by":1,"is_retracted":false,"has_abstract":true,"ca_institutions":"Discovery Centre","funders":"Department of Science and Technology, Government of Kerala","keywords":"Benzylisoquinoline; Chemistry; Nuclear magnetic resonance spectroscopy; Stereochemistry; Organic chemistry","routes":{"ca_aff":true,"ca_fund":false,"ca_venue":false,"about_ca":false,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.00005147873,0.0001372892,0.00007440913,0.0001392871,0.0001513076,0.000116214,0.0002206533,0.0002865701,0.002938185],"category_scores_gemma":[0.0001104235,0.0000506563,0.0001059241,0.0001500852,0.0001807306,0.0001800254,0.0000805275,0.0002437108,0.0004713383],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0002096239,"about_ca_system_score_gemma":0.0002041223,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.001502737,"about_ca_topic_score_gemma":0.001536789,"domain_scores_codex":[0.9999743,0.000003154428,0.000002578311,0.000007049353,0.000006517472,0.000006391937],"domain_scores_gemma":[0.9999194,0.00001408969,0.00001954507,0.00001079144,0.00002095537,0.00001521928],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"bench_or_experimental","study_design_gemma":"bench_or_experimental","study_design_scores_codex":[0.0003204374,0.00003132442,0.0009412965,0.0002205144,0.000007123519,0.002220127,0.0001937115,0.0001221724,0.9824128,0.0006833383,0.0009719923,0.01187517],"study_design_scores_gemma":[0.00009706057,0.001288449,0.03551686,0.00005639818,0.00004762751,0.007271613,0.0004484968,0.001176331,0.8720375,0.001093487,0.08091266,0.00005356902],"study_design_candidate":"bench_or_experimental","study_design_consensus":"bench_or_experimental","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9714522,0.003017199,0.005712138,0.00141328,0.0003345073,0.00009069387,0.002004305,0.00008533383,0.01589034],"genre_scores_gemma":[0.9828224,0.001917956,0.004978426,0.0004005425,0.00007985565,0.00002425988,0.001877427,0.00002374328,0.007875347],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.002938185,"threshold_uncertainty_score":0.009829223,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.009628280632426852,"score_gpt":0.2188650128846706,"score_spread":0.2092367322522438,"validation_status":"score_only:v0-immature-baseline","note":"Baseline scores from an immature model (maturity gate not passed). Scores rank; they never assert a category."}}