(R)-(+)-N-trifluoroacetyl-1-(2,3,6,7-tetrahydrobenzo[1,2-b,4,5-b']difuran-4-yl)-2-aminopropane

N-(trifluoroacetyl)-D-alanine

1,4-双(2-氯乙氧基)苯

对苯二酚二羟乙基醚

2,3,6,7-四氢呋喃并[2,3-f][1]苯并呋喃