27849-04-3Relevant academic research and scientific papers
Alkoxide-induced ring opening of bicyclic 2-vinylcyclobutanones: A convenient synthesis of 2-vinyl-substituted 3-cycloalkene-1-carboxylic acid esters
Ji, Xiufang,Li, Zhiming,Wang, Quanrui,Goeke, Andreas
supporting information; experimental part, p. 650 - 657 (2012/06/29)
The fused 2-vinyl or 2-phenyl substituted cyclobutanones 4 undergo stereoselective ring openings by the action of alkoxide ions (t-BuO- or MeO-) to produce novel vicinally disubstituted cycloalkene derivatives 5 and 6 in moderate to high yields. The ring cleavage usually occurs with complete regioselectivity. The accessibility of γ,δ-unsaturated ester or acid derivatives makes this transformation a good supplementary method for the well-established Johnson-Claisen rearrangement.
A one-pot remote allylic hydroxylation and Baeyer-Villiger oxidation of a bicyclo[3.2.0]hept-2-en-6-one by Cunninghamella echinulata NRRL 3655.
Fairlamb, Ian J S,Grant, Stephanie,Grogan, Gideon,Maddrell, David A,Nichols, Josephine C
, p. 1831 - 1833 (2007/10/03)
7-exo-Methyl-7-endo-phenylbicyclo[3.2.0]hept-2-en-6-one 3 undergoes Baeyer-Villiger and allylic oxidation, to yield novel hydroxylactone 8 in good yield by Cunninghamella echinulata NRRL 3655, representing a one step biocatalytic access to a cyclopentanoid scaffold with three chiral centers. Interesting, allylic oxidation occurs with transposition of the double bond.
Identification of novel mammalian squalene synthase inhibitors using a three-dimensional pharmacophore
Fairlamb, Ian J.S.,Dickinson, Julia M.,O'Connor, Rachael,Higson, Seamus,Grieveson, Lynsey,Marin, Veronica
, p. 2641 - 2656 (2007/10/03)
Squalene synthase (E.C. 2.5.1.21) catalyses the reductive dimerisation of farnesyl diphosphate in a [1-4] head to head fashion to form squalene, and is the first committed step in cholesterol biosynthesis. Specific inhibitors of squalene synthase would inhibit cholesterol formation and allow production of other important compounds derived from the cholesterol biosynthetic pathway, namely the ubiquinones (co-enzyme Q10), dolichol, and would also allow the isoprenylation process of ras by farnesyl-protein transferase. The construction of a hypothetical squalene synthase three-dimensional pharmacophore is presented. It serves as a template for the identification of several new potential classes of inhibitors. The synthesis, anti-microbial and mammalian pig liver squalene synthase activities of analogues based on the bicyclo[3.2.0]heptane and bicyclo[3.3.0]octane ring systems are reported. Analogues of the latter system are pro-drug type inhibitors and exhibit promising biological activity.
