Synthesis of 4-benzyl-3-phenylbutenolide natural products
摘要:
The first total synthesis of eutypoid A and a new synthesis of racemic microperfuranone and gymnoascolide A have been achieved. The key steps in our synthetic strategy involve a Suzuki coupling reaction to install the C3 aryl ring and a Mannich-type reaction for the construction of the 4-benzylbutenolide core. (C) 2013 Elsevier Ltd. All rights reserved.
synthesized using the chemoselective S N 2′ coupling of phenylmagnesiumbromide with dimethyl 2-(bromomethyl)fumarate, chemoselective allylic substitution of bromide in 3-(bromomethyl)-4-phenylfuran-2,5-dione with phenylmagnesiumbromide and regioselective N-Selectride-induced reduction of 3-benzyl-4-phenylfuran-2,5-dione as the key reactions.