140486-68-6 L-Glutamine, N-(3-((((2-(4-(2-furanylcarbonyl)-1-piperazinyl)-6,7-dimethoxy-4-quinazolinyl)amino)carbonyl)oxy)propyl)-, homopolymer Phpg-prazosin carbamate Poly-N(5)-(3-hydroxypropylglutamine)-prazosin carbamate p-(Hpg-prazosin carbamate)