| 摘要 |
Cpds. of formula (II): (where R1 and R2 are 1-5C alkyl; R3 is 1-6C alkyl, 3-8 C cycloalkyl, or phenyl opt. substd. by Cl, Br and/or 1-3C alkyl; R4 is NR5-R6, OR7 or SR7; R5 and R6 are H or 1-6 C alkyl or NR5R6 is a heterocycle; R7 is 1-6 C alkyl; Q ia O or S; Y is O or S; Z is O or NR8; R8 is H or 1-5 C alkyl) are prepd. by reacting the corresp. 2-R4-4-M1O-6-R3Y-pyrimidine with XP(Q)(OR1)ZR2 (where M1 is H or a cation, esp. Na or K; X is halogen, esp. Cl). |
