PubMed:11996832 / 527-733 JSONTXT

{"project":"sentences","denotations":[{"id":"TextSentencer_T6","span":{"begin":0,"end":206},"obj":"Sentence"},{"id":"T6","span":{"begin":0,"end":206},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"The crystal and molecular structures of ammonium (1a) and potassium (1b) salts of diisopropylidene derivative and ammonium (2) salt of monoisopropylidene derivative were determined by X-ray crystallography."}