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1 ddition to construct a unique oxaspirocyclic butenolide.
2 ut medicinally interesting chemical space of butenolides.
3 ctive transformations involving deconjugated butenolides.
4 unsaturated carboxylic acids or y-alkylidene butenolides.
5 bstituents render the exclusive formation of butenolides.
6 t achieves to produce chiral spiropyrazolone-butenolides.
7 rt synthesis of the homochiral disubstituted butenolide 1 is described in four steps from arabitol.
8 esulted in a homoaldol condensation yielding butenolide (22).
9 n of the selenoxide derived from tetracyclic butenolide 50 to give (-)-norsecurinine (6).
10                                              Butenolides 5a and 13 were used as optically active temp
11                                              Butenolide amide, the major product from the fragmentati
12 yclization/fragmentation cascade that unites butenolide and trans-hydrindane fragments while fashioni
13 he assembly of spirocyclic Delta(alpha,beta)-butenolides and beta-methylidene 2-furanones via Rh(II)-
14  Diastereoselectivity was observed and gamma-butenolides and gamma-butyrolactams showed opposite dias
15                                              Butenolides and gamma-butyrolactones control the product
16 ium hydroxide-induced fragmentation provides butenolides and gamma-hydroxycyclohexenones.
17 rt a Zn-ProPhenol catalyzed reaction between butenolides and imines to obtain tetrasubstituted vinylo
18 rotocol enabled the synthesis of substituted butenolides and isocoumarins from allyl esters.
19 edented reactions for the synthesis of gamma-butenolides and oxazoles, leveraging Tf(2)O's promoted r
20 bits a clear ligand preference for desmethyl butenolides and weak responses to methyl-substituted SL
21 n to a complex cyclohexanone 83 appended the butenolide, and a few additional steps provided (-)-gymn
22 dienone-pyrrol-2-ones, spirocyclohexadienone-butenolides, and spirocyclohexadenone-cyclopentenones ar
23                                              Butenolides are a class of 5-membered lactones that hold
24 AI2 is probably a receptor for an endogenous butenolide, but the identity of this compound remains un
25 nthesis of gamma-amino acids from beta,gamma-butenolides by an in situ esterification, condensation,
26  of developmental responses to smoke-derived butenolides called karrikins (KARs) and to yet elusive e
27     Notably, both alpha,beta- and beta,gamma-butenolides can be utilized as nucleophiles in this tran
28 h together perceive karrikins (smoke-derived butenolides), caused alteration in root skewing in Arabi
29                 beta,gamma-Unsaturated gamma-butenolides, commonly known as deconjugated butenolides,
30              Karrikins (KARs) are a class of butenolide compounds found in smoke that were first iden
31 ps including double bond stereochemistry and butenolide configuration.
32 T) experiments, we explain why electron-poor butenolides constitute a missing link between acrylates
33  powerful tool for the rapid construction of butenolide-containing natural products.
34 developed a stereoselective, heteroselective butenolide coupling that exhibits an unusually fast rate
35 at AtD14 and KAI2 exhibit selectivity to the butenolide D ring in the 2'R and 2'S configurations, res
36  structurally diverse A-ring moieties to the butenolide D-ring.
37 t led to the discovery of a potent series of butenolide ETA selective antagonists.
38 luding the neonicotinoid thiacloprid and the butenolide flupyradifurone, is conserved across all majo
39 -ray crystallographic analysis of the closed butenolide form of PD156707 shows the benzylic group loc
40 d a gamma-hydroxy propiolate as a handle for butenolide formation via Ru-catalyzed alkene-alkyne coup
41 lar Michael reaction, carbonate elimination, butenolide formation, and spontaneous oxa-Michael additi
42 s a key role in polyketide chain release and butenolide formation.
43 bond cleavage, and the rapid assembly of the butenolide found in (1) via use of the Bestmann ylide.
44                         Karrikins (KARs) are butenolides found in smoke that can influence germinatio
45 -promoted fragmentation reactions to provide butenolides, gamma-butyrolactone, and/or beta,gamma-epox
46 e-induced fragmentation reactions to provide butenolides, gamma-hydroxycyclohexenones, and/or gamma-b
47 pendent secondary metabolites, including T39 butenolide, harzianolide, and sorbicillinol.
48 atization reaction of alpha-halobenzyl gamma-butenolides has been described for the selective and con
49 synthesis of a range of structurally related butenolides has been observed while we were exploring th
50 nagel aldol adducts, gamma-substituted gamma-butenolides, has been explored.
51 hores and versatile synthetic intermediates, butenolides have received extensive attention from the p
52  We report its synthesis in six steps from a butenolide heterodimer via its likely biosynthetic precu
53 erferon genes pathway, which recruited these butenolide heterodimers from a field of 250,000 compound
54                        The carbonyl group in butenolide holds the position of thiophenyl moiety in re
55                     In addition to isolating butenolides in a high yield, we have also determined pre
56  the preparation of a variety of substituted butenolides in a simple and efficient way.
57 ess to synthetically important 3-substituted butenolides in enantioenriched form.
58 -butyrolactones along with a small amount of butenolides in limited cases.
59 iacloprid and 170-fold more sensitive to the butenolide insecticide flupyradifurone than other manage
60 onversion of aliphatic acids into ubiquitous butenolides involving triple functionalizations of methy
61         The preference of KAI2 for desmethyl butenolides is conserved in Selaginella moellendorffii a
62 enantiomerically pure spirocyclic alpha,beta-butenolides is presented where the fundamental framework
63 he unsaturated ester moiety of electron-poor butenolides leans toward that of maleic anhydride, anoth
64 ta,delta-elimination form cross-links to the butenolide lesion (4).
65 se the specificity of KAI2 towards differing butenolide ligands using genetic and biochemical approac
66 st, karrikins are abiotic in origin, and the butenolide methyl group is nonessential.
67 ddition, approaches to install the requisite butenolide moiety at the C17 position are discussed.
68  hydroazulenone core with a beta-substituted butenolide moiety on the cycloheptane ring.
69                                          The butenolide moiety was installed via a novel deoxygenativ
70                                          The butenolide molecule, karrikin (KAR), emerging in smoke o
71 rikins and strigolactones are two classes of butenolide molecules that have diverse effects on plant
72             Strigolactones and karrikins are butenolide molecules that regulate plant growth.
73 enzothiazolylidene donor and three different butenolide nitriles have been synthesized and characteri
74 other nucleophiles to give the corresponding butenolides, nitro compounds, and alpha-substituted tetr
75              Both alpha,beta- and beta,gamma-butenolide nucleophiles are compatible with the Zn-ProPh
76      The cis-dihydroxylation of a variety of butenolides occurred with the major product formed from
77  of barium carbonate, now characterized as a butenolide of 5-(hydroxymethyl)furfural (HMF).
78 a variety of building blocks bearing a gamma-butenolide or gamma-lactone connected to a cycloalkane o
79 s with arene diazonium salts to alpha-benzyl butenolides or pentenolides, respectively, or to alpha-b
80 done ligand is essential for realizing this "butenolide-oriented" C-H activation reaction.
81 -butenolides, commonly known as deconjugated butenolides, owing to their easy accessibility and highl
82               Derivatives of the proaromatic butenolide PhFu show the best nonlinearities.
83 three components, two mono-THF alkenes and a butenolide precursor, and the olefin cross-metathesis an
84 ccess the target by dimerization of a simple butenolide precursor.
85                           4-(2'-Naphthoxy)-2-butenolide, readily available with high enantiopurity by
86         We present crystal structures of the butenolide receptor AvaR1 in isolation and in complex wi
87                    For example, avenolide (a butenolide) regulates the production of avermectin, deri
88 talytic asymmetric reactions of deconjugated butenolides reported so far.
89 tertiary carbon radical and an electrophilic butenolide resulting in the stereoselective formation of
90 ed HWE product, aromatic aldehydes furnished butenolides, resulting from the dimerization of the HWE
91 nzylic group located on the same side of the butenolide ring as the gamma-hydroxyl and the remaining
92 l and the remaining two phenyl groups on the butenolide ring essentially orthogonal to the butenolide
93 onal topology associated with a swing of the butenolide ring in E-deoxypukalide is in general agreeme
94  Further structural modifications around the butenolide ring led directly to the subnanomolar ETA sel
95          Plant-derived strigolactones have a butenolide ring with a methyl group that is essential fo
96 ring-opening and fragmentation of the parent butenolide ring.
97 abitol and the cyclization of 11 to form the butenolide ring.
98 utenolide ring essentially orthogonal to the butenolide ring.
99 mes, are capable of perceiving smoke-derived butenolide signals and endogenous yet unidentified KAI2-
100 rigolactones and smoke-derived karrikins are butenolide signals that control distinct aspects of plan
101 e SMXL family enabled responses to different butenolide signals through a shared regulatory mechanism
102 eceptor for karrikins, germination-promoting butenolide small molecules found in the smoke of burned
103                                          The butenolide termini are attached to the ACD, BCE, or BCD
104                                          The butenolide termini segments were prepared from (S)- or (
105 nus, A or B, a spacer subunit, D or E, and a butenolide terminus, F or G.
106  segments are coupled to a C4- or C5-hydroxy butenolide terminus.
107 nt responses to karrikins, which are abiotic butenolides that can influence seed germination and seed
108 iple species are most sensitive to desmethyl butenolides that lack a methyl group.
109 ng the reactivity of 5-methoxy and 5-acyloxy butenolides through a combination of kinetics and densit
110 ening of a terminal epoxy ring tethered to a butenolide to produce stereoselectively a five-membered
111 Michael reactions of beta, gamma-unsaturated butenolides to alpha, beta-unsaturated ketones.
112 ntio- and diastereoselective 1,4-addition of butenolides to chromones.
113  new actinobacteria that may be regulated by butenolides, two of which are experimentally verified.
114 enantiomeric excess are synthesized from B,y-butenolides via a novel Cu(I)-ligand cooperative catalys
115                                          The butenolides were reduced and acylated in situ to give ac
116 ormed carbenoid onto the alkyne to produce a butenolide which then undergoes C-H insertion into the n
117                                          a,B-Butenolides with 96% enantiomeric excess are synthesized
118 on and reactivity comparison of deconjugated butenolides with other competing synthons of gamma-lacto
119                  The isolated ( E)- and ( Z)-butenolides with the treatment with sodium ethoxide in D

 
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