2H-1,3-Oxazine, 6-ethoxytetrahydro-3,5,5-trimethyl- 41348-57-6 6-Ethoxy-3,5,5-trimethyl-1,3-oxazinane AIDS-127164 AIDS127164 Ethyl 3,5,5-trimethyl-1,3-oxazinan-6-yl ether NSC147595