(3-Aralkylamino-2-or-propoxy) heterocyclic compounds

1-(2-Substituted-chromonyloxy)-2-hydroxy-3-(substituted phenoxy)

1-Oxo-1H-naphtho [2,1-b] pyran derivatives for treating depressi

13-Oxo-monic acid esters useful as antibacterial and antimycopla

2,10-Disubstituted dibenzo[b,d]pyrans and benzo[c]quinolines

2-Aminomethyl-5-hydroxy-4H-pyran-4-one and derivatives thereof

2-Carboxy-4-oxo-4H,6H-(2)-benzopyrano-(3,4-f)-(1)-benzopyrans an

2-Phenyl-4-pyrone derivatives, their preparation and their use a

2-Substituted-3-methyl-.gamma.-pyrone tricyclic derivatives

2-Vinyl-chromones and pharmaceuticals therewith

3-(3-Methyl-2-octyl)-1-[4-(1-ho mopiperidine)butyryloxy]-6,6,9-t

3-Acyl-5-alkyl-2H-pyran-2,4,6-(3H,5H)-triones and their 4-hydrox

3-Aminoalkyl-1,3-dihydro-3-phenylspiro[isobenzofurans]

3-Aminomethyl derivatives of 4-chromanone

4-Acylaminobenzopyrans useful as anti-hypertensive agents

4-Haloalkylamino substituted chromanol useful as antihypertensiv

4-Oxo-4H-benzopyrans as animal growth promotants

4-Spectinomycylamine and salts thereof

5-(2-Hydroxy-3-thiopropoxy) chromone-2-carboxylic acids chemical

6',2-(2'-Arylchromonyl) propionic acids, and analgesic and anti-