Design and synthesis of a unique ditopic macrocyclic fluorescent receptor containing furan ring as a spacer for the recognition of dicarboxylic acids

A New Chemosensing Ensemble for Colorimetric Detection of Oxalate in Water

“…For instance, the level of oxalate in urine is an indicator of calcium oxalate kidney stones. 24 Although a vast number of artificial receptors for dicarboxylates have been developed during the past decade, [25][26][27][28][29][30][31][32][33][34] very few examples of optical sensors for oxalate have been reported to date. 35,36 Thus, there is an urgent need to develop new watersoluble artificial receptors for the detection of oxalate under physiological conditions.…”

Microindolinone A, a Novel 4,5,6,7-Tetrahydroindole, from the Deep-Sea-Derived Actinomycete Microbacterium sp. MCCC 1A11207

“…By comparing the 1 H-, 13 C-NMR, MS, and optical rotation (OR) data with those reported in the literature, 18 known compounds were identified as pyrrole-2-carboxylic acid ( 2 ) [ 17 ], cyclo( l -Trp-Gly) ( 3 ) [ 18 ], cyclo- l -Tyr- l -Pro ( 4 ) [ 19 ], cyclo( l -Trp-Gly) ( 5 ) [ 20 ], cyclo( l -Phe-Gly) ( 6 ) [ 21 ], cyclo[ l -(4-hydroxyprolinyl)- l -leucine] ( 7 ) [ 22 , 23 ], cyclo[ l -(4-hydroxyprolinyl)- l -isoleucine] ( 8 ) [ 24 ], cyclo-( l -Pro- l -Val) ( 9 ) [ 25 ], cyclo-( l -Pro-Gly) ( 10 ) [ 25 ], cyclo-( l -Leu- l -Ala) ( 11 ) [ 26 ], cyclo-( l -Val-Gly) ( 12 ) [ 27 ], 5-methyluracil ( 13 ) [ 26 ], dibutyl phthalate ( 14 ) [ 28 ], 4-hydroxyphenylacetic acid ( 15 ) [ 29 ], N -(4-hydroxyphenyl)-acetamide ( 16 ) [ 30 ], ( S )-3-hydroxy-4-(4-hydroxyphenyl)butan-2-one ( 17 ) [ 31 ], 3-hydroxy-4-(4-dihydroxyphenyl)-2-butanone ( 18 ) [ 32 ], and (5-hydroxymethyl-furan-2-yl)-methanol ( 19 ) [ 33 ]. Surprisingly, these 19 compounds were all firstly isolated from Microbacterium species.…”

Microindolinone A, a Novel 4,5,6,7-Tetrahydroindole, from the Deep-Sea-Derived Actinomycete <em>Microbacterium </em>sp. MCCC 1A11207

“…Noteworthily, for the first time, the absolute configuration of such saturated indole was determined. By comparing the 1 H-, 13 C-NMR, MS, and OR data with those reported in the literature, 18 known compounds were identified as pyrrole-2-carboxylic acid (2) (12) [27], 5-methyluracil (13) [26], dibutyl phthalate (14) [28], 4-hydroxyphenylacetic acid (15) [29], [32], and (5-hydroxymethyl-furan-2-yl)-methanol (19) [33]. Surprisingly, these 19 compounds were all firstly isolated from Microbacterium species.…”