A compound of the formula: is formed and is, without isolation, reacted with the acid chloride or protected acid chloride. The meaning of the symbols is given in Claim 1.
26.The word 'plummeting'(Line3,Para.2)is closest in meaning to ___A.stabilizingB.changingC.fallingD.rising27. According to Paragraph 3,the use of renewable energy in America ___A. is progressing notablyB. is as extensive as in EuropeC. faces many challengesD. has...
A compound of the formula: is formed and is, without isolation, reacted with the acid chloride or protected acid chloride. The meaning of the symbols is given in Claim 1.