| 摘要 |
FIELD: organic chemistry, chemical technology. ^ SUBSTANCE: invention relates to a method for synthesis of novel intermediate indoline compounds of the general formula (VIII): wherein R1 means (C1-C20)-alkylcarbonyl; R2 and R3 are similar or different and each means a lower alkyl group; R4 means hydrogen atom (H), (C1-C4)-alkyl or its salts. Method involves addition of pivaloyl group to compound of the general formula (VII): wherein R1, R2, R3 and R4 are given above, or its salt. ^ EFFECT: improved method of synthesis. ^ 2 cl, 24 ex |
