Dichloromethane → HCID 18648615, compound

Reaction equation

C(OC([NH:8][C@H:9]1[CH2:18][CH2:17][C:16]2[C:11](=[CH:12][C:13]([O:19][CH2:20][C:21]([O:23][CH2:24][CH3:25])=[O:22])=[CH:14][CH:15]=2)[CH2:10]1)=O)(C)(C)C.FC(F)(F)C(O)=O.C(Cl)[Cl:34]>>[ClH:34].[NH2:8][C@H:9]1[CH2:18][CH2:17][C:16]2[C:11](=[CH:12][C:13]([O:19][CH2:20][C:21]([O:23][CH2:24][CH3:25])=[O:22])=[CH:14][CH:15]=2)[CH2:10]1

Participants

Reactant 3

HCID 6344Dichloromethane2×

HCID 6422Trifluoroacetic acid

HCID 10427899ethyl 2-[[(7S)-7-[(2-methylpropan-2-yl)oxycarbonylamino]-5,6,7,8-tetrahydronaphthalen-2-yl]oxy]acetate

Product 1

HCID 18648615HCID 18648615, compound

Procedure

A solution of 1 g of (S)-2-[N-(tert-butoxycarbonyl)amino]-7-carbethoxymethoxytetraline, EXAMPLE 5, in 15 ml of methylene chloride is cooled to 0° C. A solution of 2.2 ml of trifluoroacetic acid in 15 ml of methylene chloride is added thereto and the reacting mixture is left under stirring 30 minutes at a temperature of 0°-5° C. and afterwards 4 hours at room temperature. By operating as described in EXAMPLE 4, the (S)-2-amino-7-carbethoxymethoxytetraline hydrochloride is obtained; /alpha/=-52° (methanol, c=1%).