(2R, 5S, 7'R)-5-(Furan-3-yl)-2-hydroxy-7'-methyl-3', 4, 5, 5', 5a', 7', 8', 8a'-octahydrospiro(furan-3, 6'-naphtho(1, 8-bc)furan)-2'(4'H)-one

(2R, 5Z)-5-Ethylidene-2-hydroxy-2-methyl-3-methylidene

(2R-(2alpha(E), 3beta))-2-(2-(3, 4-Dihydro-6-methoxy-1(2H)-naphthylidene)ethyl)-2-ethyl-3-hydroxycyclopentan-1-one

(2R-(2alpha, 3Z, 5alpha))-3-(2-Hydroxyethylidene)-7-oxo-4-oxa-1-azabicyclo(3.2.0)heptane-2-carboxylic acid, 1:1 salt with 2, 4, 4-Trimethylpentan-2-amine

(2R-(2alpha, 3Z, 5alpha))-3-(2-Hydroxyethylidene)-7-oxo-4-oxa-1-azabicyclo(3.2.0)heptane-2-carboxylic acid, compound with tert-butylamine (1:1)

(2R-(2R*(4R*, 8R*)))-3, 4-Dihydro-2, 5, 7, 8-tetramethyl-2-(4, 8, 12-trimethyltridecyl)-2H-1-benzopyran-6-yl 5-oxo-L-prolinate

(2R-cis)-3-Acetoxy-5-(2-(dimethylamino)ethyl)-2, 3-dihydro-2-(4-methoxyphenyl)-1, 5-benzothiazepin-4(5H)-one monohydrochloride

(2R-trans)-2, 3-Fluoranthenediol

(2R-trans)-2-(2, 2-Bis(4-(acetoxy)phenyl)-1, 3-benzodioxol-5-yl)-3, 4-dihydro-2H-1-benzopyran-3, 5, 7-triol

(2R-trans)-2-(3, 4-Bis(phenylmethoxy)phenyl)-3, 4-dihydro-3, 5, 7-tris(phenylmethoxy)-2H-1-benzopyran

(2R-trans)-2-(3, 4-Bis(phenylmethoxy)phenyl)-3, 4-dihydro-3-methoxy-5, 7-bis(phenylmethoxy)-2H-1-benzopyran

(2R-trans)-2-(3, 4-Bis(phenylmethoxy)phenyl)-3, 4-dihydro-5, 7-bis(phenylmethoxy)-2H-1-benzopyran-3-ol

(2R-trans)-2-(3, 4-Bis(phenylmethoxy)phenyl)-3-(heptyloxy)-3, 4-dihydro-5, 7-bis(phenylmethoxy)-2H-1-benzopyran

(2R-trans)-3, 4-Dihydro-2-(2-(4-nitrophenyl)-2-phenyl-1, 3-benzodioxol-5-yl)-2H-1-benzopyran-3, 5, 7-triol

(2R-trans)-3, 4-Dihydro-2-spiro(1, 3-benzodioxole-2, 9'-(9H)fluoren)-5-yl-2H-1-benzopyran-3, 5, 7-triol

(2R-trans)-5, 7-Bis(benzyloxy)-2-(3, 4-bis(phenylmethoxy)phenyl)-3, 4-dihydro-2H-1-benzopyran-3-yl palmitate

(2RS)-2-(5-Benzoylthiophen-3-yl)propanoic acid

(2RS)-N-(4-Cyano-3-(trifluoromethyl)phenyl)-3-((4-fluorophenyl)sulfinyl)-2beta-hydroxy-2-methylpropanamide

(2RS, 3E)-2-Methyl-3, 4-didehydroglutamic acid

(2S)-((tert-Butoxycarbonyl)amino)(3-hydroxytricyclo(3.3.1.1 3, 7)dec-1-yl)acetic acid